Finally! SR Suntour XCR Air LOR Suspension Fork Service. FULL Overhaul.
ฝัง
- เผยแพร่เมื่อ 2 ม.ค. 2019
- Why are there no servicing tutorials for the Suntour XCR forks? I finally got one and here is my step by step guide for you ;)
Seal grease: amzn.to/2RuDvpI
80wt shock oil: amzn.to/2SAShIP
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Holy God. Thank you so much buddy. I've got the same fork with my Xtrada 7 and the lockout wasn't working that well, it felt like something is loose but didn't exactly know what to do about it. Your video really saved my day. Thank you once again ❤️
Thank you so much! Just received my bike with the lockout not working and I was able to fix it following your instructions.
Dzięki Szajbajk za Servis przyda się dla wszystkich:)
Hey buddy, thanks so much for this video. Very helpful. You did a fantastic job of presenting the information. The camera angles and things were perfect. Good job. Continue your great work. 👍
This is the best video I've watch.. Very clear and good explanation.
I like your video guide. After 11 years of use and about 27.000 km, I decided to service the fork. Although it still worked fine. I viewed several videos and didn't find any pertaining to my specific fork. However, while doing the service I noticed that with a little technical knowledge, you can do similar forks as well. One other thing I have noticed, is that there was no need to actually do a service /cleaning on my fork. Yes, the grease looked old, but there was no water or dirt inside. It has been a learning experience for me. Maybe there is a need on bikes that are in the dirt frequently. My fork doesn't perform any better after the service. Thank you to the creator of the video. Very great job.
I like how you explain everything because it's so clear and easy
Excellent video. Serviced mine this morning. Runs as good as my Revelation on my other bike.
solid video doing everyone a favour
Awesome video. I just got my first MTB (I have Road and CX bikes), and I was looking a video that would explain my budget fork suspension. And I found it here! Great work, and also quite good that you also left the mistakes too. I would probably do the same ones. Thanks a lot.
Youre a good chap Danny. Really useful video.
Thanks for very precise, informative helpful video!
Good vid... nice and clear with lots of close ups.
Great and very detailed tutorial! Thanks a lot for sharing 👍.
Thanks for the upload you legend!
Awesome video, mate, thanks a lot! This was a huge help
The best demo..
Thank you. as you said in the begining, the suntour forks are very common on entry level bikes, and truth be told they are not bad forks. but not everyone knows how to service or just overhaul the forks. great help. keep up the good videos.
Hey thanks for posting this. That little black piece flew out and I couldn’t figure how to get it back in because the exploded diagrams don’t show it on suntour’s website. No other video showed that piece. I would’ve been in trouble if I didn’t catch your video so thanks! 🤝
Perfect just what I need thanks!
Thank you for the video,I recently buy one, and need some information about the maintenance, thanks again
Great tutorial
Thanks, it’s the only video of that fork that i’ve find
I love the attention you employed in this video. I have an epixon loosing air. But the insides are to acertain extent the same. So, your movie might be very good for me.
Regarding No oil, no greese - the same was the case with my Axon, came as new with no oil whatsoever .... to create the illusion that they„re lighter.
what a great vid, thanks 👍
Great video thanks for that 👍🏻
This video was so helpful to me.
Had 2 bike shops laugh at me when I told them i was going to service my forks.
Anyone debating weather or not to service your forks, give it a go!
After 6 months of use mine had completely stopped working. They were not absorbing any small bumps and would stay completely ridged over rough terrain until a large amount of pressure was put onto them such as a drop etc.
I didn’t take the whole fork apart like in the video and still had good results and it only took around 20mins. I turned my bike upside down and took the wheel and break off. All i did was take off the adjuster nob, undo the allen bolts, take off the lower legs and give everything a clean and re-grease
If you get a torch you can see Inside the lower legs there are small square indents around 1cm x1cm around the inside of the shaft. I put a fair bit of grease in these indents as this is where the stanchions sit once they are put back together and will help keep them lubed.
You don’t have to take everything apart on the forks just take the lowers off and clean them up and put new grease on the inside and around the seals.
The forks are working great for me now this video helped a lot. Thanks
I had the same reaction from my bike shop - so will do myself. Did you put in the foam rings? Does anyone know what diameter they would be? Great video very helpful
@@gavinfreeman3234 didn’t put in the foam rings. By the sounds of it suntour forks run off grease alone and don’t have oil. I think the foam rings are mainly to act as a sponge for the oil to lube the stanchions as they move. After around 20 hours of riding i can start to notice them stiffening up again, i think its due to the dry dust getting into the forks. On sr suntours website they suggest the forks seals need regreasing from the inside after every 25 hours of riding so i will be doing this more often now as i found it a fairly simple job that only took 20 minutes or so.
Have you done yours yet?
@@yaface120 Nope But that makes sense - on the video it looks like there is some oil in fork - but only about 5ml. Never done it before, what grease do you use? It is my sons bike and i can feel it starting to stiffen up a little. But he is such a light weight that i suspect he could go another 100 hours before it become a problem
@@gavinfreeman3234 on rockshox forks videos it seems like the oil gets put in the legs where the stanchions sit? On the suntours the oil goes in the top compartment im guessing to lube the spring. Im not an expert so could be wrong.
I used fenwicks high speed grease as it was all i had around. I think its made mostly for bearings but its pretty thin so i thought it would be ok. Most videos I’ve watched recommend sram butter or slick honey if that helps
Perfect tutorial
GOLD MINE! THANK YOU!
I have my Suntour Epicon X1, which I am using for almost 20 years now, and still working very nice and smooth. All parts are almost exactly the same as your XCR except on the negative spring assembly. My X1 negative spring had a stopper with pin to adjust the travel of the fork. I changed the travel from 100 to 120mm 4 years ago, and that was the first and the last time that I serviced my fork. You mentioned that your XCR do not have an Oil Foam Ring, mine have.
What is the diameter of the thread on the upper part of the damper (oil cartridge) -right, for epicon x1 it is fun062-10 !?
FYI The Q Loc axle.
After loosening the quick release, make sure to push then turn/tighten the bolt to keep the flanges in. This is the correct manufacturer's guidelines.
Because for one reason, it will jam up on some models of hubs, due to step downs and widening inside ;)
Thanks alot for this ! Keep up the good work. Ez suscribe. Wish ya the best ^_^
Greaat video !! thank you :)
Mate,I was making this fork model longer for about 60 mm.now it is completely better.now has 155 mm complete with 125 mm effective walk.i tested it for 2-3 months....works perfect.👍💪😉
How did you extend the travel
I just service mine suntour xcm coil fork few months ago
Open and inside quite similar with this fork
Also no much serviceble
Just clean and greasing
My wifes, Cube WLS has one of these forks. Having serviced RS, Manitou and Marzocchi forks I will have ot tackle this one at some stage. Definitely a cheap build even compared to a RS Recon, the non serviceable damper is a fail. I will be tempted to swap it for a better and lighter fork instead of servicing it.
Tanks a lot fpr this video! Did an overhaul of my Suntour Raidon 34 Boost, which is pretty much the same build. Got it perfect and the fork works even better then new now! BTW i used SlickKick forkgrease and Liqui Moly 80W (GL4) oil. Fork is working very smooth now!
How much oil did you put in
I used sime hydraulic oil mixed with 5w30 GM motor oil and silicone grease. It worx.
Thanks !!
I was shocked too when I opened mine, I bought a 2000 Euros bike and didn't expect such a bad fork. Will look for a replacement and for sure it will be another brand 😫
excellent
Great video, worked for the XCR Air that is fitted as standard on my 2017 Specialized Rockhopper. The forks were terrible before the service, even though they have not been used much, but they are far better now. When putting it back together I needed to have some air pressure in and apply a sharp downward force to get the air spring side bottom bolt to tighten properly, before this the internal shaft kept spinning. As per the video, I then had to let the pressure out to get the rebound side bottom bolt in. I gave the internals a full degrease and only used oil when reassembling, the fork now gives far better small bump performance. Others have also suggested oil rather than grease improves the fork.
What about the air piston oil?
¡We have same bike!
I wanna do the service to my fork too but i am worry if i gonna need new oil.
I just added a small piece of foam inside the air chamber to make the fork more progressive so it reacts better under small bumps and it actually works. I am now using less pressure but I can feel it getting stiffer as it reaches the end of travel.
Until now it was all soft and bottom out or hugely stiff with no small bump compliance at all. Its a nice fork (for what it costs) and it has taken quite a bit of abuse and its going strong after a 1000Km of trails.
Can you clarify what type of foam? Was it directly inside the air chamber above the piston?
@@denismacfarlane255 It was a small piece of closed cell foam that i cut to size and with a hole in the center that I attached to the inside of the air top cap . I have had to cut it a bit to get it right but it enabled me to lower the air pressure so the fork works better on small bumps without bottoming out anymore. Suntour used to sell a piece off foam for this fork and that is where I got the idea from.
@@cortarelva What size form did you use?
since the negative spring is a coil you can just fill the air chamber with oil to reduce the volume. But dont dump it in, do it in for example 5ml steps (fox float fluid pillow packs are nice for this)
Nice 😘
Amazing video. Spending hours reading forums but you got everything right in one video. 👍 Did you replace the two foam rings by the way?
I installed foam rings on mine and it's sooo much smoother now: th-cam.com/video/BxSWEHqFu2g/w-d-xo.html
Nice work. I have a 2017 Cube Stereo HPA 120 Race with a Manitou Minute TS air fork that deserves a rebuild. I can't locate any vids or info on how to rebuild this fork, or procuring new seals and foam rings. It's got 1000 Miles on it and is in great condition, shall I just give it a go? I do all my own work on our bikes and should have the tools needed. You made this SR suntour rebuild look quite simple, thanks for the push.
Wow
This is the closest I can find for servicing my 2015 sr suntour epixon 27.5 forks.. Even after emails to sr suntour they said to just put it in a shop.. They didn't seem to know the oil specs or torque of the bolts, there's nothing on the official website either.. That's poor if you ask me. Very unimpressed with them.
Go to the Suntour USA website. You”l find some spare parts, and there even oil.
Great video. THANKS! Just a clarification: it is not an error to put air at 13"0' because without it, it is not possible to screw the nut of the air cylinder at the bottom: it turns without tightening, the rod inside is not fixed.
If possible, please upload Epixon LOR OverHaul video.
hi there loved the video can you tell me the length of the Allen key inside the rebound knob as i lost mine i need to replace it
clear voice, clear video. Thanks to you how I contact you?more video like upgrade cheap bike like I have.
Good
Well, I will definitely be adding the foam rings. Hell don’t these forks have the same or share the same wipers as a raidon?
For those wondering about installing foam rings, check out this vid: th-cam.com/video/BxSWEHqFu2g/w-d-xo.html
Excelente Video.. Very gooodd
Awesome! I have a Suntour Auron 35 Boost. Do you know If the Service steps are the same as you showed? Thanks a Lot.
Hi, great video... Can xcr 32 lor be adjust from 120 to 140mm? I saw a video he removed half of the negative.spring. is it advisable? Thank you
What is the diameter of the thread on the upper part of the damper (oil cartridge) -right, for epicon it is fun062-10 , and what is the diameter of the XCR cartridge thread FUN 082-10 ?
Hello @SickBiker any idea how short the radio from 120mm to 90 o 100mm? Regards
Make a video on how to improve the performance of that fork please
I have a Rockshox 30 silver TK and I have an issue regarding this fork. The rebound knob is not making clicking sounds while trying to adjust the rebound damping, it just slides round and round smoothly and also it is harder to push the knob in its position. Can you tell me what is causing the problem? Do I need to replace the rebound damper with new one?
Hello Danny, just wanted 2 say hello, i am new to mountain biking but i have been watching a numberous amount of your videos, im am up in air as far as choosing my first mountain bike, i have been looking @ 2 bikes, the vitus nucleus vrs 29er 2020 & orbea MX 10 29er, iam 6’7” & 295 pounds, they both have air forks but they are hardtails, i will be riding the bike mainly on simple bike trails & light to medium xc trails in my area but would like to progress up to some aggressive riding where i can do some jumps off burms & dirt ramps for the most part, which of the 2 do u think is best for a rider of my size & being my first real mountain bike, thank u for reading my comment & have a very blessed day to you !
Does the back of the arch have bolt holes for the rrp proguard bolt on mud guard ?
The lower thread on the rebound side seems to have been crushed.What should I do?
Good video but jf I have my fork apart for a rebuild, guaranteed its getting new O rings and seals.
Can I replace the grease with oil in the lower legs and some foam rings?
Do you know if they make this fork for a 2018 Norco fluid FS2 +. It would have a 29er fork W. boost and it's a plus. 2.8 front tire. thanks in advance. :-) Also what dose it weigh. The sun tour thats on my bike now weighs 7+ lb. :-(
What did you upgrade you mentioned foam?
Im using this fork, it produce a sound when it rebounds ( like air coming out) is that normal? And i can really feel the difference of the rebound
Hello) Have you poured 5 milliliters of oil into the air chamber?
How much difference is it between this fork and a Manitou Markohr?
I just got a 2022 version of this fork. I have owned a couple of the higher spec suntour Aion forks before and loved them. Initial impressions of this one are pretty positive after 1 ride... still need to play arround with rebound settings. The forks specs are very good for the money. It's not as nice as a more expensive ones, but you get what you pay for and it seems a capable budget fork. There are still no foam rings but I ordered some... didn't cost much. I'm wondering if it is because they have steel stantions? I noticed that none of the suntour or rockshox forks with steel stantions feature a sag indicator ring... and now wondering if they all omit the foam rings too, possibly to prevent rust forming if they get saturated with water from neglect / poor maintenance 🤔 I will be careful to do regular lower leg services to be safe. Overall i like this fork. It should not be confused with the realy cheap steel sprung suntour forks on "leasure" mtb's. This is significantly higher performance and quality. Thanks so much for the great tutorial 😀
Mi Horquilla se desgasto al medio por no tener mantenimiento, más bien por no instalarle las esponjas lubricadas que ya deberian haber venido instaladas de fabrica, la mantención es super sencilla, el aceite que usé fue un 5 wt para el pistón y un 15 wt para las esponjas.
Qué medidas son las esponjas??
@@crazyfox7114 Las Esponjas son de 32 mm.
what about the oil on the lower legs of the fork ? this system is actually basically the same system used on Fox older shock . great move by Sr Suntour
Oil can be used and is often as an upgrade, but no oil means quick and cleaner service with no spillage.
I have a bruise on my right leg inside the fork?what can at be?
There is no difference in full open rebound to totally close?
Hi ! Your amazon links for 80wt oil ans grease are dead. Could you replace them please ? 🙂
Thanks for the video, i just bought Epicon Front air fork and the suspension is too hard, at your video 3:38 to release air, can i use the same method to make it softer? Or any idea how to release the air to make it softer? big thanks!
You shouldn't use a hex wrench or any other stick to take the air out, you could Mess the valve up. Use a fork air bomb instead!!!
The 2019 Titan Racing Rogue Sport, I cannot find anything about it. Does it use the same fork and does it use wheel shafts, can anyone please help me
Could you do some epixon forks service?
It's the same. Clean the outside of the fork with 91% isopropyl alcohol first to avoid washing more dirt into it. Unbolt and drop the lowers like in the video by carefully pulling with one hand on each side, don't grab the crown if it feels stuck insert the bolts 4 turns and try tapping again. Spray everything with 91% rubbing alcohol, not degreaser. Wipe everything clean. Use a dowel and clean shop towel to wipe inside the lowers. Regrease inside the wipers and on the spring shaft and rebound shaft. Carefully slide it back together and torque the bolts to 10nm. Go ride it! Airspring service is only needed if it's leaking and the cartridge can't be removed so there's no point to risk messing it up.
I have problem the lock is not used, how to fix it sir?
great video man!! is the rebound clicky ? or just does it just turn with no sound ?
i just got a new bike with the same XCR air and i don't see any difference between the rebound fully open or closed so i was wondering if it might be faulty
@@tmonteur5264 thanks buddy , did you have to disassembly the entire fork or can i just remove the red knob and adjust it , and what kinda tool did you use to do that ?
This is very similar to my Raidon LOR boost fork that came on my 27.5+ bike, except the rebound knob/bolt and the air shaft fixing bolt aren't recessed like this XCR. I was also surprised to find no fork oil inside, however mine did have the foam rings above the bushings. It is a solid fork but terrible at ironing out smaller bumps and plushness. I am currently trying to tune the fork using different negative springs to see if there is any improvement, but so far still pretty disappointing.
@@justahasbeen Thanks for that. Have ordered a new Rockshox Sektor now anyway and waiting for that to arrive. I'll see how they compare and if the Sektor is worth it. Not a high end fork by any means but I would hope its better. I wonder about the longevity of that compression/rebound assembly too and the fact that it's not rebuild-able could be a false economy.
Same here
Thought I should add to my comment that my Rockshox Sektors have been amazing. A whole other level and I would say worth the money for sure. Pay a couple of hundred more (AUD) and you get so much more tune-ability, quality and performance. You can see where the extra cost goes.
Another work around with good results, is to buy some closed cell foam, and cut to shape so it fixs in the air chamber- through the top. It works like air spacers making the fork more progressive through the stroke. So, once it's installed run a lower pressure in the fork to improve small bump performance and combined with adding oil into the lowers it should be a dream. This will be my next project on bike with Epixon forks :) I can't say how tall the foam should be as this is something I'll have to discover, using standard air spacers for reference :)
Don't attempt to remove the caps with a spanner. Go straight for a socket. I've sheered the cap and don't know what I'm going to do to get it off.
well it's the cheapest air fork, you can't expect much... I am wondering if sr raidon is better constructed or it is simmilar to this one
Es xcr 32 y cuánto tiene de recorrido?
Will this be same for GVX?
I have an sr suntour xce 100 mm fork
Great video! Do you think there would be any sense in upgrading my Xcm hlo coil fork to air? A local machine shop makes air springs for santour forks for around $30.
Not neccesarily, be easier to get another fork 😊
@@mrjoeybackwheel1473. Thanks. Speaking of which, just ordered the manitou markhor last night
@@timothychua-reyes5631 great choice
Could you possibly do a video on converting a coil fork to air such as on a fork that comes in both options. I have heard people doing this on rockshox forks
Lol no, is impossible
@@007kuntasod it has been done before forums.mtbr.com/shocks-suspension/rockshox-xc-32-tk-coil-solo-air-conversion-868476.html
I tried with my XCR 30 with custom parts and 3d printing. I was trying to recreate Rockshox's Debonair system, but Suntour make their stantions with different inner diameter at the different places, so the stantion inside is not straight. I give up, because i can't find the right size pipe to make it like the Rockshox's Soloair.
Only if my Xcr was 32mm, i would buy the Soloair from Rockshox. 😢😢😢
Does this bike already come assembled?
Very informative video. Mine got foam rings included. What would be the best oil use for the foam rings?
I heard that Pedro's Bike Lust polish works well as an external lubricant for the stanchions
awesome thank you - but one thing: you didnt mention anything about adjusting travel - this fork is supposed to be adjustable from 100-140mm (at least mine is I believe - XCR34 LO R Air Boost)
The xcr 34 is, but this is an xcr32. I don't think it's adjustable, if it is adjustable it's only 80-100 for 29ers and 80-120 for 27.5
ciao, video molto bello. si può modificare mettendo un comando remoto? e come? grazie
si ma devi comprare la cartuccia idraulica predisposta per il bloccaggio remoto www.srsuntour.us/collections/xcr-service-parts/products/xcr32-rl-r-cartridge-1?variant=28106280003
What about foam rings? Is it possible to install them into the fork? Which rings will fits?
32mm diameter foam rings will fit. I used the ones that are for rockshox.
Yes, I installed 32mm foam rings on my XCR and it made a huge improvement: th-cam.com/video/BxSWEHqFu2g/w-d-xo.html
Do you know where i can buy that limiter travel spacer that can be seen in 6:27 of the video. Looking forward to your response. Thanks a lot💯
3d print it. I have one, but I am afraid you wont want to go to czech republic😅
Could you go into detail about the foam ring?
Can I help? :) what about them?
Yes. Did you add foam rings? What rings did you use?
@@herculesmclovin I can't find cheap foam rings anywhere. Order a 'bunch' from Korea for £10 and when they arrived it was only 1!
@@trevorryan3343 you can buy all the rebuild kit in AliExpress
@@neutralbuoyancy I got mine on ebay (from china), and it works awesome now. Here's an install video: th-cam.com/video/BxSWEHqFu2g/w-d-xo.html
Should we do service on almost new fork?? Unused for 2 years. Is there too little oil or something?
it depends on the type of the fork, but a safety check service is always good
Where can i get a service kit for this fork,looked all over but cannot find one!
Maybe this one is the right one:
www.srsuntour.us/collections/xcr-service-parts/products/xcr-34-air-rebuild-kit-1