You got unlucky with that auto zero issue. On a ride last year I, on the other hand got lucky, with a wheel based speed sensor. I averaged over 100 km/h on a ride, with top speeds over 130 km/h. Finally a piece of kit that revealed how fast I really am. :D
Great review Shane! I had a subscriber with a similar issue. I talked to their R&D guy and yeah, they said they think they calibration unit was miscalibrated. (Who calibrates the calibrators?) Fortunately something like this should be easy to fix with a firmware update.
@@pukkagoblin Just tested my unit against an Elite Direto. My unit arrived about 3 weeks ago. it under reports by 6-7%, same as what GP Lama has found.
Hello, I have a cannondale synapse carbon 2019 105 disc bike. It has cannondale SI crank with BB30. Which xcadey spider powermeter should I take? Thanks for advice, Milan
It's good to see that power meters become more and more affordable. I spent 700 dollars on a used Quarq Dfour 91with cranks plus 100 dollars for a new bottom bracket and installation T-T
Wow. Thanks a lot. Can't say how much I appreciate your pretty in depth testing and the good comparison and also the will to fix occurring issues and do further testing to verify whether it's a good thing or not. Much love from Germany
Thank you for the data info and your opinion about this product. I’m looking for a power meter, but like you said, I’m one of those people that will not have time to be able to compare this to other products or to go through the bug fixes that it would need. Thanks again! 🙏🏼
Bought one of these a few months ago, did firmware update and then needed to go to 50%, maybe I did something wrong. Will play with settings a bit more. Getting some Assioma Duos, so will do comparisons on this bike (gravel) and my race bike with Stages.
Hi, have two x power -s sensors, I have the same problem as you have with one of the two, it is because the xpower-L firware is installed or it is updated ...
Haha. If you don't have an additional power meter, you won't know that your power meter is off :p At every least, one should have a power meter which is consistent.
Hello Shane, Waiting for my right XCadey Shimano crankarm based power meter. I know this is not a best option, but I have direct drive break located under the BB, so no option to have left-sided only PM without changing the break. I got it for 180 USD so I believe it is some kind of bargain here for the new unit. I also believe in scaling for the data output, so firstly will test it with my CycleOps H2 and may be later borrow friend's Vectors. In my plans is to get it accurate as possible, since right crank 8000 will be a challenge. Was a little bit suspicious for scaling but after your video I have much more confidence in my choice. Will wait the parcel and see if it cost its price. Thx and be safe.
Thank you for this review... I was looking forward to it. I really think I’ll get this one. From the price point it’s the only one I can afford and I don’t mind setting it to 105% or other % based on the power my trainer sets. Btw thank you for your reply on ig. Cheers from Colombia.
I bought mine and have been now riding it for a month. After comparing it to my trainer following your method, had to scale it up to 109%... apart from that, all ok... I think 109% is a bit too much, but then again, it's the values I am getting with my direct drive trainer.
Great review Shane! Really helped me out making a choice. I have a Raceface Next-SL crankset on my Canyon Lux and only 3 power meters options to go with: 1. Cinch power meter crank - 600$ single sided - meh 2. Power2Max - 590$ spider based - nice 3. Xcadey - 290$ spider based - what ?? Almost pulled the trigger on the Power2Max, specs are good, seems a robust build and good reviews. Still there's that scratch... eventually I was turned off by the battery cover on the spider that most likely will fly off during my battle with the elements exposing the battery, losing the battery, get filled with muck. I do not like to worry about gear on a mountain bike, this no small issue would have had me pulled out from the free flow riding nirvana into the abyss of the anxious and the distressed. So no.. Xcadey is half the price and it seems it got OK reviews so far. Push to shove, got a Xcadey package the other day. Installation was a breeze and all is working in order. The hardware build is sturdy, installation tolerances spot on. Good job on the CNC :-) iPhone paired, firmware updated, zero calibrated, Garmin paired all in a breeze. As simple as any other bike electronic gizmo I have on my bike, as soon as I've installed it I forgot it's there till it blinks red for more juice. Still need to cross-calibrate with my Kickr, yet numbers look OK comparing with my other bikes. Happy so far.
I find the products of the company XCadey interesting from the Price point. However, with my last purchase I had to learn that if you have a problem with them, you should not expect a solution. For Europe there is currently no proper help from the manufacturer. Main problem is, as always, the quality assurance ex works. One can be lucky and everything fits or not. When I bought it, the electronics on the power meter were defective at the factory first. It was exchanged after months but against another series. There the charging cable plug had been produced wrong. So after 6 month no solution. But I would be happy if other customers would feel better.
I recently got a Rotor ALDHU 24mm with the XCADEY XPOWER-S 4 bolt 110 setup and I am going to run a comparison to my Elite Direto to test the accuracy. Wondering if you would like the data to analyze as a follow up to your review?
I'm just about to order same set up. In fact have ordered XCadey already. How did you get on? Do you happen to know if the Rotor aerocrown fits over the Xcadey ok?
@@chrisshaw2361 tested it on several occasions agst the direto. It was reading low but when I scaled it up to 110% it finally read ok. I have a quarq riken on my TT bike that tracks nicely agst the direto, so the direto should be accurate. My sentiments echo gplamas- if you have no ability to test this against a known good powermeter then its sorta pointless. Something is really not right with their factory calibration as I've seen people reporting values from 6-17%. No experience with the aerocrown, but looking at it I dont think it would fit aesthetically. Its worth a shot though.
@@davidngqkalone88 Cheers for that. I'm kind of in 2 camps on the accuracy. If it was someone's only power meter it wouldn't really matter, so long as it was repeatedly reporting the same discrepancy in a linear fashion. And in my case I have a Drivo and Garmin vector 2 pedals that line up nicely so the facility to scale up or down would hopefully allow me to ride any bike in or out and be working pretty close to same power readings. Just trying to get a clean aero look on the TT bike, and the other option might be to use one of the old QRings to avoid the gap. Would mean having OCP adjust on both the spider mount and the rings but could fix 1 in mid position. So many options but 1 way or another should get a decent fit and look. Thanks for swift response. (Presume once you scaled up they tracked the Direto well throughout the range?)
@@chrisshaw2361 disagree about that. If its inaccurate it means you cant do virtual elevation aero testing, and if you ever switch to a new PM your data will be useless. If you dont care about that then you might as well stick with power estimators like strava that get you close enough. I mean, would you accept a weighing scale that gives you 'close enough' accuracy?
@@davidngqkalone88 Partly agree, things like Bestbikesplit will be a little out of whack although still useful to an extent. Strava estimator is no use really if you're trying to pace a 25 mile TT or a long course tri bike leg. My point is aimed more at when you want to pace out your effort as a % of ftp it doesn't matter if your watts are reading different to someone else's, only matters that you get the same watts every time. I'm only really interested in my data now - my ftp will change over years, and during a year, then if you get another meter, so long as you can scale at least one of them to match you're still good to go. But I do agree, if you want nailed on accuracy for very precise and accurate virtual aero testing it would be less useful if you didn't have an accurate meter to scale it against. I still think you could use it for Chung testing - if you're comparing helmet A to helmet B it doesn't really matter if the CdA is 100% accurate, it only matters that 1 tests consistently better than the other.
@@gplama Found it. It's on their twitter page "Today is a milestone ➡️ we delivered our very first mass-produced power meter to @dcrainmaker ! We're sending another one to @gplama later this week. Now all of you can get an honest review by an independent party + we’d like to get their experienced feedback as well."
Just a few thoughts from weights and measures technician depending on what country a strain gauge is calibrated in, the difference in the gravity constant around the world will effect any certified mass used to calibrate the unit and in turn result in a slightly low or high reading when in a different country. Not sure I would expect that much difference but could easy be down to cheaper strain gauges. Most strain gauge bassed mechanisms should have a gravity constant multiple in software to account for this when calibration can not be done in a new country.
My spider came last week installed, calibrated and did a test ride. Instantly noticed it was reading too high. Tested it on the tacx neo and it was reporting 17% too high. Adjusted the power to 83%. And it's reporting fine now, this should never be happening out of the box. (Edit: Support solved it, got a brand new unit)
I've a Sigeyi AXO which probably it's just its twin brother, apart from the app manging and FW side (no scale factor). It's +/-1% compared to Assiona duo pedals and Drivo I gen. I'm waiting to get this one too. Thanks for the video.
Shane Miller - GPLama Really looking forward for that SIGEYI one being on that point when not sure which path take, Xcadey or Sigeyi. Thank you very much for your videos, they are really useful for the rider community. Best wishes from Spain
Does powermeter spiders work well with oval chainrings or should i better go for the powermeter pedals with oval chainrings? Using a 36T on my fully and a 42T on my hardtail, both oval 3mm offset. Greetz
My question is: no exist a spider based power meter using the Shimano Crackset, true? All options need to remove shimano cranks? Is that true? In the dura-ace 9100 case
In my case i bought Xcadey Xpower-s but i can't setup power, it only measure cadence when i installed it. If anyone know what's up when this occurs? and the seller doesn´t support yet...
hey Shane. how are you? thanks for the video. I just bought an xcadey just like that. I made some comparison with my elite turbo trainer and find that I need to correct it by -14%.
Awesome review! I have a question regarding the cadence averaging you mentioned at 10:55: How can I change the setting on my Garmin Edge 1000 to display the 3s/5s cadence average? Under "Recording interval" I can only select "smart" or "1 Sec"
The three data fields to choose from under Cadence are: Cadence/Cadence - Avg./Cadence - Lap. I assume the Cadence - Avg. option shows the average value of the whole ride?
Hello, update on my unit. It Broke... one morning it just would not work as it got stuck on the blue light. Would not connect, would not show any signal on bluetooth or ant+. I charged it, discharged it and it would not work. When it finally returned to give signal (After fully discharching and charging the unit for the third time) the numbers were completely off... 40 watts on a climb that i usually ride at 230 (Even after several calibration attemps) ... Luckily my unit was bought from a local distibutor who has accepted to replace my unit because of waranty.
I had a very similar problem after about 5 months, ANT+ and BLTE both became intermittently unresponsive (couldn't connect with my phone or GPS bike computer). Sometimes the blue light was jammed on, other times it wouldn't come on at all. I also had wild power numbers towards the end, fluctuating from 30W to 900W on a steady state ride. The Good News is that I received a replacement unit directly from Xcadey within 3 weeks of emailing them. I originally bought the unit from Aliexpress. I contacted Xcadey to describe the problem and they came right back and said it was a hardware failure and offered to replace it no questions asked - no serial number, no questions about usage, didn't ask for the old one back - just sent me the new one. All up it was under three weeks from emailing them to getting the replacement unit including two weeks shipping from China to NZ. EXCELLENT CUSTOMER SERVICE! I will also say that the power readings seem very accurate, I have mine adjusted to 106% and it reads slightly higher than a Tacx Neo 2 I used when I did a FTP test, which makes sense given the difference between measuring at the crank and measuring at the wheel.
I wonder how much power is getting lost in the transfer from the pedal to the crank through that whole kinetic chain. Like we know that you'd see some power losses comparing a pedal to a rear hub, but that wouldn't mean that either PM was "wrong", just that they weren't measuring the same thing.
I have a new one gen 2 spider and just recieved it calibrate and test it against wahoo kickr core (also calibrated).on avg during high or lower cadence at 250 watts they were close 252 w XCADEY vs 247 watts Kikr (on a 20 minutes steady state).Also the power curve is lookining exactly the same .Do you think I should scale it to measure lower by 1.5% which is the difference or just let it this way.Also I have spotted that it reacts faster on changes in pedalling and not drifting like kikr so the diff may be from there …it also looks a more stable stable than my quarq dfour (3yrs old)and no drops on turbo or other issues.
Are you scaling on power or scaling on torque. It looks like the cadence isn't as clean but averages out pretty well so if that's true then they have the same net effect, but you can't reliably assume that first. A wide cadence range for testing can uncover if the problem is a zero offset or a calibration slope. Spiders have one mechanical weakness that is normally meaningless in a good design or weird in a bad design. They can have a sinusoidal response depending on the orientation and misalignment of shear gages (a quarq design). Normally on a 4+ instrumented arm (inside) it's hard to make this worse than 1 - 2%. One a 2 arm (P2MAX) it's easier. Then they need to do multiple orientation calibrations and average them out. On average it's still generally low. But Zero offset error and calibration error can look the same on inspection. If scaling torque fixes it then it's calibration "slope" and if adding torque offset then it's zero offset problem.
How do I reset XPOWER-S Power Meter? Mine just stopped reading, it just displays "0" on my bike computer. Both the bike computer and the meter are updated and can communicate with each other. If you can help, that will be cool. Thanks
@@emmanuelnocete135 I have one on the way for XC racing. Too good of a deal, and since this is my only power meter, consistency not accuracy is important.
@@harryhislop3821 Well. I can't speak for reliability / accuracy since I have not compared to a smart trainer or power pedals. I did notice an issue where the cadence would jump around from 90 to 105, which affected the power. Overall though it has been pretty good.
Hello. I have a cannondale synapse carbon 2019 105 disc bike with cannondale SISL crankset and BB30. Does it mean that I can purchase only the xcadey spider power s 110BCD for cannondale SI and will be able to install it on existing crankset? Thanks, Milan
I have been renting a Wattbike pro for lockdown and it must have 2 power meters because it shows a figure of 8 inside a digital quadrant analysing my pedalthrough stroke. For left and right foot. So going forward, when I goto buy something,does any other system offer this technology.. for me specifically for indoor smart trainer . Wahoo kicker bike? No one else seems to advertise this as a power meter advantage, showing left and right in an analytical quadrant,but it seems to me quite important? Or is it not?
Pedal stroke analysis on the Wattbike may be more accurate if they have crank position sensors with just the one power metering 'source'. L/R balance/spilt is somewhat interesting. The peanut.... kind of interesting. Useful..... maybe.
They have a terrible support. It worked OK for few months, but when I uninstalled it and reinstalled it, the power read became zero. It is complicated to open a ticket. And even after that, got some simple answer like, "reset it". And it the only response in two weeks.
Hi shane Great video, just received my unit for a sram 3-bolt crank but with a 104bcd for my MTB. Did your unit also come with a countersunk screw interface instead of the flat head as the sram cranks use? In my case, the screws use to fix it to the 3-bolt interface on the crank are surrounded by the powermeter material for about 60% of their diameter, but the rest does not touch the bottom of the crank interface, which causes a bending load on the bolts... Although there should hardly be a considerable cyclic load on the bolts, as the teething should take most of it, it still bothers me to possible break off the spider... Bet it's gonna happen in a race ;/
I am using this in my Enduro rig with RF cracks. Much better than my RF spindle based. The RF spindle power meter was mad to install and had draining battery from the go.
Thanks very informative! However my xcadey S sram 110bcd doesnt show LR balance data. I hope you can help me on this. I hope the xcadey app can fix this. Firmware is upgraded.
I and lots of users report discrepancies between direto and pedal power meter in the Direto Facebook group. I am always surprised you and Dcrainmaker get it spot on... Discrepancies is increasing with higher power - @ 170w it can be 15w and 25w @250w... elite has never been able to solve this issue and claim it is part of the device inaccuracy.
I can only comment on what I have and record. Ray and I do spend a lot of time making sure things are lined up for best possible chance of power meters to 'succeed'. We each have a testing protocol to follow.
@@gplama thanks for the reply. Highly appreciated! Is it possible that manufacturers are sending you perfect unit since they now your protocol and your influence?
Shane Miller - GPLama thanks for your review, it has been very appreciated, - I can confirm that my Xpower-VS (sram 104 bcd) reading about 5% to 6% less than my DiretoX, What I would like to know if my version of spider is the first version you got or the second's, in my android application I can see also the hardware version that is 1.2, but of course it tell nothing if you don't know yours, is possible to know which is yours? or how do you think I can test? with sprint over 1000w for me could be a bit tricky :-) Anyway thanks.
i bought two of these power meters, in less than a year, both have failed. One failed while i was riding in the rain. The other failed after a wet and muddy ride on a mountain bike. The units were very wet but did not get submerged. x-cadey only support using facebook's whatsapp messenger, which makes it hard for me to communicate with them. are the Sigeyi AXO Power meters any better for water resistance? i don't trust the rated IP6x waterproof rating on the x-cadey.
No idea on the AXO. I haven't used them in the rain, and they've asked all units I've had sent for testing be returned. Best stick with a proven brand for now.
@@gplama Love your content! Well for me, i only bought two of these after a mostly positive review from you. Can i suggest in the future if you review something that claims to be IP67 waterproof, you submerse it in a bucket of water for 30 minutes before using it, it would really help us out. To use a proven brand of power meter for my 3 bolt SRAM MTB cranks, there is only power2max. spending that sort of money i would prefer the SRAM/Quarq branded one, but that uses an 8-bolt crank. I went for a MTB ride last weekend, and half way through, the power meter came to life. After a re-calibration it seemed to give good numbers. Soon after i had a creek crossing and it failed again. X-Cadey support has been non-existent. very unimpressed with them. My advice is to not buy.
Great video as always! Do you know of any budget power meters that are compatible with FSA cranks? Left only or spider based. I want to put a power meter on my Giant TCX that came with FSA Omega 1x crank (I think)
Yes. Unless a company states their power meter works with non-round rings, it's a good sign it'll throw out the accuracy. The only way to solve this is with a meter that supports them.
Im not a massively serious pro athlete, however i am a keen Sunday warrior so these el cheapo power meters intrigue me. I was just wondering how on earth you work out if it will fit ye crank?
@@gplama Ive seen on DC rainmakers website that on my crank setup (FSA gossamer and praxis works rings) that power2max do a spindle based power meter. So I'll keep my eyes open.
@@abedfo88 They do spiders compatible with SRAM 3 and 8 bolt mounts, and Rotor 3D and Aldhu compatible mounts - just check whether your crank is based on one of the those. More blurb on the xcadey website.
Would you prefere this one over Sigyi AXO? During one of you live streams it seems that you have used Sigyi AXO. Will you do a proper reviews of Sigyi AXO as well?
I'd recommend looking at either a Power2Max or Quarq spider power meter. I was never confident with the AXO data. It was great sometimes, then it would change a lot with a firmware update. Sigeyi requested I return all test units.... indicating to me they weren't confident in their product enough for me to review it.
Shane: Does the pedal stack height affecting the power reading on the spider/crank based power meters? What do you think? Also could be the 5% off beying from badly set (on the app side) crank length? Or perhaps by wrong label on the fake cranks that you have used? Also is calibration to 130% gonna make you a Zwift winning monster? Can anyone knows?
With the measurement on something like the Assioma being in the pedal spindle, I'd go with no, as long as the crank length is set correctly with the head unit. I measured the cranks just to be sure. They were 172.5mm. Power scales up to 254%. Very easy to cheat yourself on Zwift.
Hello Shane. I have used xcadey left cranck for years without any problems, then I decieded to buy a righr one and pair them. During the process with the app I made a mistake and chose wrong firmware. Now it can not connect with the app, I have tried to contact with the technical service without answer yet.and really desperate! would you know how to reset the xcadeys firmware .? Can no t onnect with the app in any android anymore. Thanks!
@@juanf.v5854 What email adress have you used? I wrote 2 emails to sales@xcadey.com and to info@xcadey.com on 13.05.2021 but have not get any reply yet. So quite dissapointed. :-(
Hi Shane, great and super helpful review. I installed the 104 BCD SRAM version on my MTB bike. My question is the app offers options for ‘spider type 1’ or ‘spider type 2’. Does anyone know what this means?
I find it interesting that people are claiming some form of calibration by scaling up or down to match their indoor trainers, also un-calibrated. Yes you're getting a match, which is helpful but not a definitive calibration.
Hey Shane, I am just wondering as you mentioned that you replaced the first unit which reported low sprint watts. Do you think whether it could be a HW issue with given unit or it could be corrected by newer firmware upgrade or adjust of scaling within the app ?
hi, how are you? I just purchased an XPOWER-S SHIMANO MTB 104BCD power meter, and I have only just noticed an incompatibility of the BCD 104 with the shimano 12 speed system. Shimano's BCD is 96, not 104. How do you suggest I use my shimano xt8100 with a BCD 104? I just found the sram crown, are there any that work with the shimano system?
У меня 2 поколения, разница в 14 % завышения мощности, сравнивал с elite xrt, но в приложении можно изменить % мощность и я его откалибровал с минимальной погрешностью
@@olt1771 14% overestimation on the gen 2 unit is crazy I took it out for a spin last week and functioned flawless power was pretty close to my usual power output with my original stages power meter
@@dsrc53 Strange, I have 14-15%. I calibrated it with XRT Elite. With Now it shows about the same as on the machine. But I still don't like why this error was originally
If you're referring to drivetrain loss, you can ignore the trainer and look at the pedal comparison. Drivetrain loss is minimised with my steady state testing with a straight chainline, clean chain, new components, etc. It's also typically overestimated when people are discussing power losses.
Shane Miller - GPLama thanks. Trainer power (bike output power) verses pedal power (bike input power).. These powers will differ depending on which gear you are in. Correct?
That depends.... but it's a yes. There's a LOT to it.
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I installed mine this week, first test today and the power values were insane. In a light spin, it was scoring 350-450 W. Decreases the power setting by 50%, it looked like real values from there. But I don't know how to know what the real would be.
@@gplama Hey Shane, I'm thinking of getting a XCadey powermeter. Do you know if they still have that auto zeroing issue that you mentioned in the video?
@@jbkltc4469 There's a HUGE number of ways to cheat the system. Power meter scaling is just one of many. I've spoken about the issues eRacing faced years ago.
They look VERY similar. The options look similar. Their charger is identical. The issues I've had with both are very similar. They tell me they are different companies..... *shrug*
I asked to "Arancee shop" In Aliexpress and they told me there is no difference. Only the brand and the price are different... I'll probably buy another one
Hi Shane. Could you make a video on how someoone can easily get the data from 2 powermeter sources, i.e i have a direto and if i got a powermeter and recorded a ride on zwift what would i need to do? I think , from watching you all your videos/analysis /lama lab tests i would need to do the following. Connect direto to zwift as normal, do a 20km ride with my 2nd powermeter attached to my wahoo in passive mode and just record the ride. Then input both files to dc rainmaker analysis tool and then I could in theory compare the percentage of deviation between both power meters. (seeing this video an xcadey spider seems good if we can verify if we all would need to do a scaling offset). as always thanks for your videos as they are the highlight of my youtube viewing experience and the FITFILE podcast is also my go to. :)
Another request to test the XCadey gen2 please.
You got unlucky with that auto zero issue. On a ride last year I, on the other hand got lucky, with a wheel based speed sensor. I averaged over 100 km/h on a ride, with top speeds over 130 km/h. Finally a piece of kit that revealed how fast I really am. :D
Lmao this comment is so underrated. Sorry for the necro post but I had to.
Great review Shane! I had a subscriber with a similar issue. I talked to their R&D guy and yeah, they said they think they calibration unit was miscalibrated. (Who calibrates the calibrators?) Fortunately something like this should be easy to fix with a firmware update.
Do you know if there has been any developments/improvements? Have my unit arrive in 3 days. Not sure if I need to apply scaling fix also.
@@pukkagoblin Just tested my unit against an Elite Direto. My unit arrived about 3 weeks ago. it under reports by 6-7%, same as what GP Lama has found.
Hello, I have a cannondale synapse carbon 2019 105 disc bike. It has cannondale SI crank with BB30. Which xcadey spider powermeter should I take? Thanks for advice, Milan
Rule #1 of Power Meter comparisons
- Always assume the highest number is correct
Then before telling your friends add at least 50W
Raphael Tiziani standard
Backwards hat Dylan recommends multiplying result based on RPE
@@yahhi12 lol well played
So pleased you've reviewed these.. Looking forward to the follow up Rotor review to check for consistency
It's good to see that power meters become more and more affordable. I spent 700 dollars on a used Quarq Dfour 91with cranks plus 100 dollars for a new bottom bracket and installation T-T
Wow.
Thanks a lot.
Can't say how much I appreciate your pretty in depth testing and the good comparison and also the will to fix occurring issues and do further testing to verify whether it's a good thing or not.
Much love from Germany
Thank you for the data info and your opinion about this product. I’m looking for a power meter, but like you said, I’m one of those people that will not have time to be able to compare this to other products or to go through the bug fixes that it would need. Thanks again! 🙏🏼
Bought one of these a few months ago, did firmware update and then needed to go to 50%, maybe I did something wrong. Will play with settings a bit more. Getting some Assioma Duos, so will do comparisons on this bike (gravel) and my race bike with Stages.
Hi, have two x power -s sensors, I have the same problem as you have with one of the two, it is because the xpower-L firware is installed or it is updated ...
Hi, i have resolute the problem, open the XCADEY app and open and connect with power meter, !Long click! the firmware upgrade. select "xpower-s"
@@xavierduboscq2277 Thank you so much, I have done this and hopefully it will solve the issue.
I bought one of these (SRAM 3 Bolt). Within 1W of my Kickr Core out of the box! Maybe the firmware/calibration has improved over time.
1 watt?
Xcadey Number one 💪💪💪
This proves everyone needs more than one power meter!
TheCrossroads09 hahaha some can’t even afford a power meter
Haha. If you don't have an additional power meter, you won't know that your power meter is off :p At every least, one should have a power meter which is consistent.
Hello Shane,
Waiting for my right XCadey Shimano crankarm based power meter. I know this is not a best option, but I have direct drive break located under the BB, so no option to have left-sided only PM without changing the break.
I got it for 180 USD so I believe it is some kind of bargain here for the new unit.
I also believe in scaling for the data output, so firstly will test it with my CycleOps H2 and may be later borrow friend's Vectors.
In my plans is to get it accurate as possible, since right crank 8000 will be a challenge.
Was a little bit suspicious for scaling but after your video I have much more confidence in my choice.
Will wait the parcel and see if it cost its price.
Thx and be safe.
How did you find it so cheap? :o
@@Frankthegravelrider Alixpress + some luck ;)
Thank you for this review... I was looking forward to it. I really think I’ll get this one. From the price point it’s the only one I can afford and I don’t mind setting it to 105% or other % based on the power my trainer sets. Btw thank you for your reply on ig. Cheers from Colombia.
I bought mine and have been now riding it for a month. After comparing it to my trainer following your method, had to scale it up to 109%... apart from that, all ok... I think 109% is a bit too much, but then again, it's the values I am getting with my direct drive trainer.
mine was 110%, but now everything ok
Great review Shane! Really helped me out making a choice. I have a Raceface Next-SL crankset on my Canyon Lux and only 3 power meters options to go with:
1. Cinch power meter crank - 600$ single sided - meh
2. Power2Max - 590$ spider based - nice
3. Xcadey - 290$ spider based - what ??
Almost pulled the trigger on the Power2Max, specs are good, seems a robust build and good reviews. Still there's that scratch... eventually I was turned off by the battery cover on the spider that most likely will fly off during my battle with the elements exposing the battery, losing the battery, get filled with muck. I do not like to worry about gear on a mountain bike, this no small issue would have had me pulled out from the free flow riding nirvana into the abyss of the anxious and the distressed. So no..
Xcadey is half the price and it seems it got OK reviews so far.
Push to shove, got a Xcadey package the other day. Installation was a breeze and all is working in order. The hardware build is sturdy, installation tolerances spot on. Good job on the CNC :-) iPhone paired, firmware updated, zero calibrated, Garmin paired all in a breeze. As simple as any other bike electronic gizmo I have on my bike, as soon as I've installed it I forgot it's there till it blinks red for more juice.
Still need to cross-calibrate with my Kickr, yet numbers look OK comparing with my other bikes. Happy so far.
Nice one!
Is it sold in USD or is that AUD?
How is xcadey doing?
I find the products of the company XCadey interesting from the Price point. However, with my last purchase I had to learn that if you have a problem with them, you should not expect a solution. For Europe there is currently no proper help from the manufacturer.
Main problem is, as always, the quality assurance ex works. One can be lucky and everything fits or not. When I bought it, the electronics on the power meter were defective at the factory first. It was exchanged after months but against another series. There the charging cable plug had been produced wrong. So after 6 month no solution. But I would be happy if other customers would feel better.
I got email reply very quickly
I recently got a Rotor ALDHU 24mm with the XCADEY XPOWER-S 4 bolt 110 setup and I am going to run a comparison to my Elite Direto to test the accuracy. Wondering if you would like the data to analyze as a follow up to your review?
I'm just about to order same set up. In fact have ordered XCadey already. How did you get on? Do you happen to know if the Rotor aerocrown fits over the Xcadey ok?
@@chrisshaw2361 tested it on several occasions agst the direto. It was reading low but when I scaled it up to 110% it finally read ok.
I have a quarq riken on my TT bike that tracks nicely agst the direto, so the direto should be accurate. My sentiments echo gplamas- if you have no ability to test this against a known good powermeter then its sorta pointless. Something is really not right with their factory calibration as I've seen people reporting values from 6-17%.
No experience with the aerocrown, but looking at it I dont think it would fit aesthetically. Its worth a shot though.
@@davidngqkalone88 Cheers for that. I'm kind of in 2 camps on the accuracy. If it was someone's only power meter it wouldn't really matter, so long as it was repeatedly reporting the same discrepancy in a linear fashion. And in my case I have a Drivo and Garmin vector 2 pedals that line up nicely so the facility to scale up or down would hopefully allow me to ride any bike in or out and be working pretty close to same power readings. Just trying to get a clean aero look on the TT bike, and the other option might be to use one of the old QRings to avoid the gap. Would mean having OCP adjust on both the spider mount and the rings but could fix 1 in mid position. So many options but 1 way or another should get a decent fit and look. Thanks for swift response. (Presume once you scaled up they tracked the Direto well throughout the range?)
@@chrisshaw2361 disagree about that. If its inaccurate it means you cant do virtual elevation aero testing, and if you ever switch to a new PM your data will be useless. If you dont care about that then you might as well stick with power estimators like strava that get you close enough.
I mean, would you accept a weighing scale that gives you 'close enough' accuracy?
@@davidngqkalone88 Partly agree, things like Bestbikesplit will be a little out of whack although still useful to an extent. Strava estimator is no use really if you're trying to pace a 25 mile TT or a long course tri bike leg. My point is aimed more at when you want to pace out your effort as a % of ftp it doesn't matter if your watts are reading different to someone else's, only matters that you get the same watts every time. I'm only really interested in my data now - my ftp will change over years, and during a year, then if you get another meter, so long as you can scale at least one of them to match you're still good to go. But I do agree, if you want nailed on accuracy for very precise and accurate virtual aero testing it would be less useful if you didn't have an accurate meter to scale it against. I still think you could use it for Chung testing - if you're comparing helmet A to helmet B it doesn't really matter if the CdA is 100% accurate, it only matters that 1 tests consistently better than the other.
Noooo I thought it was going to be the IQ squared pedals :'(, can't wait for that review!!!
This is all good training for me while I wait for those to..... maybe arrive.
s/arrive/exist/
@@gplama I'm sure I saw a post from IQ2 a few weeks ago saying that they'd sent some to yourself and dc rainmaker.
They have my address. That's as far as things have progressed. Rotor managed to get the INSpider here in a few days from Spain.
@@gplama Found it. It's on their twitter page "Today is a milestone ➡️ we delivered our very first mass-produced power meter to
@dcrainmaker
! We're sending another one to
@gplama
later this week. Now all of you can get an honest review by an independent party + we’d like to get their experienced feedback as well."
Just a few thoughts from weights and measures technician depending on what country a strain gauge is calibrated in, the difference in the gravity constant around the world will effect any certified mass used to calibrate the unit and in turn result in a slightly low or high reading when in a different country. Not sure I would expect that much difference but could easy be down to cheaper strain gauges. Most strain gauge bassed mechanisms should have a gravity constant multiple in software to account for this when calibration can not be done in a new country.
Elevation needs to be factored in for precise calibration, yes.
My spider came last week installed, calibrated and did a test ride. Instantly noticed it was reading too high. Tested it on the tacx neo and it was reporting 17% too high. Adjusted the power to 83%. And it's reporting fine now, this should never be happening out of the box. (Edit: Support solved it, got a brand new unit)
I've a Sigeyi AXO which probably it's just its twin brother, apart from the app manging and FW side (no scale factor). It's +/-1% compared to Assiona duo pedals and Drivo I gen. I'm waiting to get this one too. Thanks for the video.
Stay tuned for that one! Coming soon.
@@gplama looking forward to it!!
Shane Miller - GPLama Really looking forward for that SIGEYI one being on that point when not sure which path take, Xcadey or Sigeyi. Thank you very much for your videos, they are really useful for the rider community. Best wishes from Spain
Shane Miller - GPLama it would be interesting to see the Xcadey, the Sigeyi and the Rotor INspider compared to each other. Keep up the great work!
Thank you, Shane. Nice review.
Tks Shane! Great Job.
Great review!
Does powermeter spiders work well with oval chainrings or should i better go for the powermeter pedals with oval chainrings? Using a 36T on my fully and a 42T on my hardtail, both oval 3mm offset. Greetz
Hi Shane, I’ve bought the xpower-s power meter. How do I get all the info regarding cadence symmetry etc?
My question is: no exist a spider based power meter using the Shimano Crackset, true? All options need to remove shimano cranks? Is that true? In the dura-ace 9100 case
Correct.
In my case i bought Xcadey Xpower-s but i can't setup power, it only measure cadence when i installed it. If anyone know what's up when this occurs? and the seller doesn´t support yet...
hey Shane. how are you? thanks for the video. I just bought an xcadey just like that. I made some comparison with my elite turbo trainer and find that I need to correct it by -14%.
Awesome review! I have a question regarding the cadence averaging you mentioned at 10:55: How can I change the setting on my Garmin Edge 1000 to display the 3s/5s cadence average? Under "Recording interval" I can only select "smart" or "1 Sec"
There should be a data field on the Edge to show this.
The three data fields to choose from under Cadence are: Cadence/Cadence - Avg./Cadence - Lap. I assume the Cadence - Avg. option shows the average value of the whole ride?
Do I need to install an app from the IQ store? See my other response for the options shown currently
Massively interested in a power meter but on a budget.
Hello, update on my unit. It Broke... one morning it just would not work as it got stuck on the blue light. Would not connect, would not show any signal on bluetooth or ant+. I charged it, discharged it and it would not work. When it finally returned to give signal (After fully discharching and charging the unit for the third time) the numbers were completely off... 40 watts on a climb that i usually ride at 230 (Even after several calibration attemps) ... Luckily my unit was bought from a local distibutor who has accepted to replace my unit because of waranty.
I had a very similar problem after about 5 months, ANT+ and BLTE both became intermittently unresponsive (couldn't connect with my phone or GPS bike computer). Sometimes the blue light was jammed on, other times it wouldn't come on at all. I also had wild power numbers towards the end, fluctuating from 30W to 900W on a steady state ride. The Good News is that I received a replacement unit directly from Xcadey within 3 weeks of emailing them. I originally bought the unit from Aliexpress. I contacted Xcadey to describe the problem and they came right back and said it was a hardware failure and offered to replace it no questions asked - no serial number, no questions about usage, didn't ask for the old one back - just sent me the new one. All up it was under three weeks from emailing them to getting the replacement unit including two weeks shipping from China to NZ. EXCELLENT CUSTOMER SERVICE!
I will also say that the power readings seem very accurate, I have mine adjusted to 106% and it reads slightly higher than a Tacx Neo 2 I used when I did a FTP test, which makes sense given the difference between measuring at the crank and measuring at the wheel.
I wonder how much power is getting lost in the transfer from the pedal to the crank through that whole kinetic chain. Like we know that you'd see some power losses comparing a pedal to a rear hub, but that wouldn't mean that either PM was "wrong", just that they weren't measuring the same thing.
Seems like there's new firmware update recently to version 37. Any chance of a test to see if power accuracy have been improved?
I have a new one gen 2 spider and just recieved it calibrate and test it against wahoo kickr core (also calibrated).on avg during high or lower cadence at 250 watts they were close 252 w XCADEY vs 247 watts Kikr (on a 20 minutes steady state).Also the power curve is lookining exactly the same .Do you think I should scale it to measure lower by 1.5% which is the difference or just let it this way.Also I have spotted that it reacts faster on changes in pedalling and not drifting like kikr so the diff may be from there …it also looks a more stable stable than my quarq dfour (3yrs old)and no drops on turbo or other issues.
Are you reviewing the Elite Suito?
pls make test with xcadey cannondale 110BCD. Nice video.
Could you test a Sigeyi AXO Power meter? (They look very similar but they come from different companies AFAIK)
Great in depth analysis!
Yes
Are you scaling on power or scaling on torque. It looks like the cadence isn't as clean but averages out pretty well so if that's true then they have the same net effect, but you can't reliably assume that first. A wide cadence range for testing can uncover if the problem is a zero offset or a calibration slope. Spiders have one mechanical weakness that is normally meaningless in a good design or weird in a bad design. They can have a sinusoidal response depending on the orientation and misalignment of shear gages (a quarq design). Normally on a 4+ instrumented arm (inside) it's hard to make this worse than 1 - 2%. One a 2 arm (P2MAX) it's easier. Then they need to do multiple orientation calibrations and average them out. On average it's still generally low. But Zero offset error and calibration error can look the same on inspection. If scaling torque fixes it then it's calibration "slope" and if adding torque offset then it's zero offset problem.
Not sure how they’re scaling. I suspect it’d be pretty basic. There’s no raw torque from these units to review in real-time that I’m aware.
How do I reset XPOWER-S Power Meter? Mine just stopped reading, it just displays "0" on my bike computer. Both the bike computer and the meter are updated and can communicate with each other. If you can help, that will be cool. Thanks
Como puedo solucionar el equilibrio de pierna izquierda y derecha
I'm running out of reasons not to have one on my MTB at that price
Hey could you update me if you ever get one? Looking to buy one for my mtb as well. Thanks in advance!
@@emmanuelnocete135 sure I will. Still haven’t got one yet.
@@emmanuelnocete135 I have one on the way for XC racing. Too good of a deal, and since this is my only power meter, consistency not accuracy is important.
@@willshields1730 how has it performed?
@@harryhislop3821 Well. I can't speak for reliability / accuracy since I have not compared to a smart trainer or power pedals. I did notice an issue where the cadence would jump around from 90 to 105, which affected the power. Overall though it has been pretty good.
Hello. I have a cannondale synapse carbon 2019 105 disc bike with cannondale SISL crankset and BB30. Does it mean that I can purchase only the xcadey spider power s 110BCD for cannondale SI and will be able to install it on existing crankset? Thanks, Milan
$299 for this, vs $399 for Quarq. Quarq is the obvious choice. I have 3x for many years, flawless all around.
Except quarq is only for 8 bolts, for me that would include purchasing a new crankset. Otherwise sure, a real name is worth $100 easy.
I picked mine up for $215 delivered
I wonder how it will look like if you remove the xcadey decals? any available photos from the internet?
when are you going to do the gen 2
When I get my hands on one.
Great review! Is it a better choice to go for Xcadey left crank power meter than this Xpower-s ?
I have been renting a Wattbike pro for lockdown and it must have 2 power meters because it shows a figure of 8 inside a digital quadrant analysing my pedalthrough stroke. For left and right foot. So going forward, when I goto buy something,does any other system offer this technology.. for me specifically for indoor smart trainer . Wahoo kicker bike? No one else seems to advertise this as a power meter advantage, showing left and right in an analytical quadrant,but it seems to me quite important? Or is it not?
Pedal stroke analysis on the Wattbike may be more accurate if they have crank position sensors with just the one power metering 'source'. L/R balance/spilt is somewhat interesting. The peanut.... kind of interesting. Useful..... maybe.
Any idea what the Gen 2 version accomplishes over the first gen?
I'm not across their latest offering. Maybe I'll get one to test/review in the future.
Please tell me this scaled power doesn't get sent to Zwift 🙏 #watt-dope-ia!
Of course it does. 👌🏼😀
@@gplama Hmmmmm.... why stop at 106% 😈
Cheating is easy. Anyone can do that. Getting the power numbers accurate is harder and more of a challenge.
Nice video, thanks :)
They have a terrible support.
It worked OK for few months, but when I uninstalled it and reinstalled it, the power read became zero.
It is complicated to open a ticket. And even after that, got some simple answer like, "reset it". And it the only response in two weeks.
So after about nine months, the replacement is here.
Thumbs up👍
Hi shane
Great video, just received my unit for a sram 3-bolt crank but with a 104bcd for my MTB. Did your unit also come with a countersunk screw interface instead of the flat head as the sram cranks use?
In my case, the screws use to fix it to the 3-bolt interface on the crank are surrounded by the powermeter material for about 60% of their diameter, but the rest does not touch the bottom of the crank interface, which causes a bending load on the bolts... Although there should hardly be a considerable cyclic load on the bolts, as the teething should take most of it, it still bothers me to possible break off the spider... Bet it's gonna happen in a race ;/
I have the same issue, but haven't had failures yet
Warum kann man die App nicht mehr Downloaden ?
Does the spider Xcadey have the same ant+ ID issue on the left arm Xcadey?
Do you know the size for a s works venge vias crackset s works fact carbon
Thx in advance
So that test a couple days ago wasn’t with the iq2... ;-(
Quarq requiring their own crank is like adding doubling the price. Any plans to review Sigeyi's power meter?
Yes. I’ve been test riding a SIGEYI for the last few months.
Great vid! Would you suggest this for an xc racer looking for a budget power meter?
If the calibration is correct, it's a budget option, yes.
I am using this in my Enduro rig with RF cracks. Much better than my RF spindle based. The RF spindle power meter was mad to install and had draining battery from the go.
Thanks very informative! However my xcadey S sram 110bcd doesnt show LR balance data. I hope you can help me on this. I hope the xcadey app can fix this. Firmware is upgraded.
Best contract XCadey support
I and lots of users report discrepancies between direto and pedal power meter in the Direto Facebook group. I am always surprised you and Dcrainmaker get it spot on... Discrepancies is increasing with higher power - @ 170w it can be 15w and 25w @250w... elite has never been able to solve this issue and claim it is part of the device inaccuracy.
I can only comment on what I have and record. Ray and I do spend a lot of time making sure things are lined up for best possible chance of power meters to 'succeed'. We each have a testing protocol to follow.
@@gplama thanks for the reply. Highly appreciated! Is it possible that manufacturers are sending you perfect unit since they now your protocol and your influence?
Shane Miller - GPLama thanks for your review, it has been very appreciated,
- I can confirm that my Xpower-VS (sram 104 bcd) reading about 5% to 6% less than my DiretoX,
What I would like to know if my version of spider is the first version you got or the second's, in my android application I can see also the hardware version that is 1.2, but of course it tell nothing if you don't know yours, is possible to know which is yours? or how do you think I can test? with sprint over 1000w for me could be a bit tricky :-)
Anyway thanks.
1.2 on the 2nd unit
@@gplama thanks! now I can breathe! :-)
1.2 version and 5% lower than direto here as well
1.2 version and 6% lower than an elite turno.
i bought two of these power meters, in less than a year, both have failed. One failed while i was riding in the rain. The other failed after a wet and muddy ride on a mountain bike. The units were very wet but did not get submerged.
x-cadey only support using facebook's whatsapp messenger, which makes it hard for me to communicate with them.
are the Sigeyi AXO Power meters any better for water resistance? i don't trust the rated IP6x waterproof rating on the x-cadey.
No idea on the AXO. I haven't used them in the rain, and they've asked all units I've had sent for testing be returned. Best stick with a proven brand for now.
@@gplama Love your content!
Well for me, i only bought two of these after a mostly positive review from you.
Can i suggest in the future if you review something that claims to be IP67 waterproof, you submerse it in a bucket of water for 30 minutes before using it, it would really help us out.
To use a proven brand of power meter for my 3 bolt SRAM MTB cranks, there is only power2max. spending that sort of money i would prefer the SRAM/Quarq branded one, but that uses an 8-bolt crank.
I went for a MTB ride last weekend, and half way through, the power meter came to life. After a re-calibration it seemed to give good numbers. Soon after i had a creek crossing and it failed again.
X-Cadey support has been non-existent. very unimpressed with them.
My advice is to not buy.
hi Shane any news about the Sigeyi AXO review? Have they sorted out their issues?
How would you rate them comparing to XCadey?
Thanks.
I've had a similar experience with that unit. I'll publish my video on the AXO soon.
@@gplama really looking forward to it. If you've had the same sort of issues, I hope you can also set a power offset to correct it!
Great video as always! Do you know of any budget power meters that are compatible with FSA cranks? Left only or spider based. I want to put a power meter on my Giant TCX that came with FSA Omega 1x crank (I think)
Hi Shane,Any updates on firmware resolution of the issues you brought up?
I haven't looped back to anything from XCadey.
Good Job. Have you tested Sigeyi AXO also?
Yes. I'll cover that here soon.
@@gplama any news from this test ?
@@julienbornet414 They've asked I send back all AXO units I have been testing, so no. Nothing interesting to report at all.
Shane, do you think oval chainrings would affect readings at a point of making it inaccurate? Is there a way to bipass this "distortion"?
Yes. Unless a company states their power meter works with non-round rings, it's a good sign it'll throw out the accuracy. The only way to solve this is with a meter that supports them.
hi, is the crankset on which you mounted it a goldix? (Chinese crsnkset) tks
No idea sorry. It was an unbranded crank they supplied, if I recall correctly.
is this crankset good for mounting sigeyi axo?
I'd choose something a little higher spec such as a Rotor ALDHU or similar.
@@gplama tks
Im not a massively serious pro athlete, however i am a keen Sunday warrior so these el cheapo power meters intrigue me. I was just wondering how on earth you work out if it will fit ye crank?
Knowing what fits is a bit of a nightmare. People have to be experts on their own equipment.
@@gplama Ive seen on DC rainmakers website that on my crank setup (FSA gossamer and praxis works rings) that power2max do a spindle based power meter. So I'll keep my eyes open.
@@abedfo88 They do spiders compatible with SRAM 3 and 8 bolt mounts, and Rotor 3D and Aldhu compatible mounts - just check whether your crank is based on one of the those. More blurb on the xcadey website.
@@fukawitribe hi Tim so if my crank is 110BCD will any of the 5 bolt 110 BCD ones fit?
Would you prefere this one over Sigyi AXO? During one of you live streams it seems that you have used Sigyi AXO. Will you do a proper reviews of Sigyi AXO as well?
I'd recommend looking at either a Power2Max or Quarq spider power meter. I was never confident with the AXO data. It was great sometimes, then it would change a lot with a firmware update. Sigeyi requested I return all test units.... indicating to me they weren't confident in their product enough for me to review it.
Shane: Does the pedal stack height affecting the power reading on the spider/crank based power meters? What do you think? Also could be the 5% off beying from badly set (on the app side) crank length? Or perhaps by wrong label on the fake cranks that you have used? Also is calibration to 130% gonna make you a Zwift winning monster? Can anyone knows?
With the measurement on something like the Assioma being in the pedal spindle, I'd go with no, as long as the crank length is set correctly with the head unit. I measured the cranks just to be sure. They were 172.5mm. Power scales up to 254%. Very easy to cheat yourself on Zwift.
Hello Shane. I have used xcadey left cranck for years without any problems, then I decieded to buy a righr one and pair them. During the process with the app I made a mistake and chose wrong firmware. Now it can not connect with the app, I have tried to contact with the technical service without answer yet.and really desperate! would you know how to reset the xcadeys firmware .? Can no t onnect with the app in any android anymore. Thanks!
You’ll need to contact XCadey support
@@gplama I I wrote them a week ago, finally now the Xcadey support answered me, I need to use and iphone in order to reinstall the firmware
@@juanf.v5854 What email adress have you used? I wrote 2 emails to sales@xcadey.com and to info@xcadey.com on 13.05.2021 but have not get any reply yet. So quite dissapointed. :-(
Hi Shane, great and super helpful review. I installed the 104 BCD SRAM version on my MTB bike. My question is the app offers options for ‘spider type 1’ or ‘spider type 2’. Does anyone know what this means?
Have you had any issues with the auto zeroing as mentioned in the video? I'm thinking of getting one.
@@f2.8- it’s been working fine although I don’t have a reference for the calibration. The auto zero wanders +/- 3
@@ww2fly I'm a complete noob when it comes to power meters and training with power (never had one before). Is 3% a lot, or is in insignificant?
I find it interesting that people are claiming some form of calibration by scaling up or down to match their indoor trainers, also un-calibrated.
Yes you're getting a match, which is helpful but not a definitive calibration.
Hey Shane, I am just wondering as you mentioned that you replaced the first unit which reported low sprint watts. Do you think whether it could be a HW issue with given unit or it could be corrected by newer firmware upgrade or adjust of scaling within the app ?
That's one for XCadey. I have no insight into the hardware or firmware specifics. Similar to black box testing.
Thank You for review. Can You check compatibility with Polar Vantage V watch, if possible?
I don't have any Polar watches sorry.
@@gplama Thank You for prompt answer :)
hi, how are you? I just purchased an XPOWER-S SHIMANO MTB 104BCD power meter, and I have only just noticed an incompatibility of the BCD 104 with the shimano 12 speed system.
Shimano's BCD is 96, not 104. How do you suggest I use my shimano xt8100 with a BCD 104?
I just found the sram crown, are there any that work with the shimano system?
This is a query for X-Cadey Support.
@@gplama "www.aliexpress.com/item/32922661446.html Hello here's the suggested chainring for you as reference". Response sent by Xcadey support
Can you gest the gen 2 unit I want to know if its accurate or do I need to compensate for the 5% difference
It's on the cards. I met with XCady here at Eurobike 2024 yesterday and saw their next generation spider.
У меня 2 поколения, разница в 14 % завышения мощности, сравнивал с elite xrt, но в приложении можно изменить % мощность и я его откалибровал с минимальной погрешностью
@@olt1771 14% overestimation on the gen 2 unit is crazy I took it out for a spin last week and functioned flawless power was pretty close to my usual power output with my original stages power meter
@@dsrc53 Strange, I have 14-15%. I calibrated it with XRT Elite. With Now it shows about the same as on the machine. But I still don't like why this error was originally
Just to summarize, you would recommend a scale up to 105% and a manual offset instead of an automatic one?
105% solved the issue I had with this one unit. I can’t advise on any other unit without seeing the data.
i have xcadey and direto trainer, with 105% data match very well
do you have a chance to test a xcadey x-power gen2
Not yet.
IF it comes out later that all their units are 5-6% low, is that something that could be adjusted in the calibration software or via firmware update?
Yes... Although I'd be surprised if they haven't since verified their calibration machine/procedure.
Hi Shane. I have Garmin Edge 820. Also riding indoors a lot. Garmin or Asioma ? Which power meters are better?
gplama.com/powermeter-guide/
Do you always have to zero this out at a traffic light then? Thinking about getting one..
Just once before a ride is usually fine.
How do you compare the trainer power to the pedals power given there are gears in between?
If you're referring to drivetrain loss, you can ignore the trainer and look at the pedal comparison. Drivetrain loss is minimised with my steady state testing with a straight chainline, clean chain, new components, etc. It's also typically overestimated when people are discussing power losses.
Shane Miller - GPLama thanks. Trainer power (bike output power) verses pedal power (bike input power).. These powers will differ depending on which gear you are in. Correct?
That depends.... but it's a yes. There's a LOT to it.
I installed mine this week, first test today and the power values were insane.
In a light spin, it was scoring 350-450 W.
Decreases the power setting by 50%, it looked like real values from there.
But I don't know how to know what the real would be.
if you've just installed it with the chainrings, you need to do a couple of hard sprints, then calibrate it.
I kept hearing "xkcd power meter".
Does the box contain a bobcat?
Wouldn't you assume all need to scale up to 105 percent? Only if you had another Xcadey could you prove it out?
I can only go on what I have seen/tested. I'll get the Rotor compatible one and see how that goes.
What do you think about the Specialized Power Cranks?
No thoughts. I haven't had a set to look at and analise.
Does this mean that we all need to adjust to 106% and it'll be right then?
Unlikely. I can only speak for the single unit I had.
😊👍
Any update on the accuracy of these units out of the box? Still recommend scaling the slope by 5-6%? Thanks
I'm trying to get a hold of a new/updated meter from XCadey. They're yet to reply to my emails.
@@gplama Hey Shane, I'm thinking of getting a XCadey powermeter. Do you know if they still have that auto zeroing issue that you mentioned in the video?
@@f2.8- No idea sorry.
do you have a coupon discount for xcadey?
Buy it from lazada at one of their sales which they run often.
so can you just enter a factor in the firmware to up the power readings?
On some power meters, yes.
@@gplama another nail in the coffin for zwift eracing, isn't it?
@@jbkltc4469 There's a HUGE number of ways to cheat the system. Power meter scaling is just one of many. I've spoken about the issues eRacing faced years ago.
What is the difference between Xcadey and Sigeyi? Are they de same manufacturer?
They look VERY similar. The options look similar. Their charger is identical. The issues I've had with both are very similar. They tell me they are different companies..... *shrug*
I asked to "Arancee shop" In Aliexpress and they told me there is no difference. Only the brand and the price are different... I'll probably buy another one
Does anyone know what the difference between the Sram 3H 110 BCD and the Sram 3H 110 BCD-4s is?
4h--> 4 holes, its for MTB
@@davidecomberlato531 Awesome, thanks for clearing that up.
Hi Shane.
Could you make a video on how someoone can easily get the data from 2 powermeter sources, i.e i have a direto and if i got a powermeter and recorded a ride on zwift what would i need to do? I think , from watching you all your videos/analysis /lama lab tests i would need to do the following.
Connect direto to zwift as normal, do a 20km ride with my 2nd powermeter attached to my wahoo in passive mode and just record the ride. Then input both files to dc rainmaker analysis tool and then I could in theory compare the percentage of deviation between both power meters. (seeing this video an xcadey spider seems good if we can verify if we all would need to do a scaling offset). as always thanks for your videos as they are the highlight of my youtube viewing experience and the FITFILE podcast is also my go to. :)
Already done not long ago: th-cam.com/video/JhheDLXRM7I/w-d-xo.html
Awesome can't believe i missed this. You da Best 🚴🏻♂️🚴🏻♂️
How high can the power adjustment be set? I think I need this for my next Zwift race
254%
B grade here I come! Nah I could never do that to my power data
Which one fit to Shimano Ultegra R8000 ?
The Rotor BCD 110-4S will take Shimano rings (I believe). This needs a ROTOR ALDHU crank set.
I think this is the only affordeble powermeter for my Sram NX eagle mtb.
If you want to stick on-brand then the new Rival AXS Quarq would be an option.
@@gplama thanks. I just bought the Xcadey second hand from a forum member in my country. 140 euro is not to bad to try it out.