Q&A: Why do Shimano SLX, XT, XTR (Micro Spline) hubs CREAK and FAIL?
ฝัง
- เผยแพร่เมื่อ 11 ก.ค. 2024
- Shimano SLX (M7110), XT (M8110), and XTR (M9110) rear hubs of Micro Spline family were introduced in 2019. The plan was to introduce them as SCYLENCE hubs, however Shimano dropped this idea in the last moment. Despite the advantage of 12 speed Micro Spline design, these hubs have been causing lots of issues from the early miles. Starting with some creaking and then following with complete failures. Let's sum up all the experience on this. And a bit of history as well.
My other videos on these freehubs:
- • Shimano SLX, XT, XTR c...
MTBR forum thread with numerous complaints on this problem:
- www.mtbr.com/threads/multiple...
Cyclingtips news on Shimano Scylence from 2019:
- www.cyclingtips.com/2019/02/s...
Find and follow me on:
- STRAVA / strava
- Instagram / zavyalov_cycling
Contents:
0:00 - Intro
0:45 - History
2:10 - Creaking
3:05 - Crashing
3:50 - XTR spacers
4:30 - Warranty
5:11 - Positive cases?
5:43 - Show must go on
6:12 - Conclusion
Credits (appearance order):
- • XTR M9100: The sound o...
- • Scylence Shimano
- bike.shimano.com/en-EU/produc...
- • Shimano XT M8110 Sound...
- bike.shimano.com/en-EU/produc...
- aliexpress.com/item/400106905...
- www.ciclimorbiato.com/shimano...
#cycling #shimano #service
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Never had Shimano hub. Never even thought about it.
I'm currently working on a new build and I was looking at these hubs for my wheel set
I'm glad I watched your video first. My previous build is fitted with the previous xt hubs and they've been absolutely fine.
Thank you for the feedback. Right, the new ones are complete turnaround in terms of reliability!
Thank you! My 2022 Shimano slx freehub that came on my Specialized Turbo Levo Comp mtb failed at around 2,000 miles. I purchased the bike in Nov 2021 and at the time it had all Shimano components. It just started grinding and ate the metal gears. I had it replaced. Luckily I had bought a spare free hub when the bike was new, as during Covid it was impossible to find one. Specialized switched to Shram in January 2022 for their components. Now I know why.
My new bike came as “XT everything”, and it looked like a sign of reliability back then. What a wrong look 😂
Thanks for this explanation! My new Giant MTB came with SLX components and started creaking within weeks of purchase, I had to take it back to the shop several times before they finally relented and replaced the hub. After another six months, it's started again and I notice the bike is 'ghost pedalling' when you push it forward, deja-vous all over again. From your experience it sounds as if the only true solution is to replace the hub with something other than Shimano.
Welcome! The ghost pedaling itself is not yet a sign of a failed free hub. But you are right with the conclusion - this SLX is likely to creak again and again. An easy and relatively cheap replacement could be Shimano FH-MT510 or 410. 510 shares almost the same shell with your SLX. Meaning you can even get away with your old spokes. 410's shell is a tiny bit different, but it seems the old spokes would suit fine as well. Both 410 and 510 have a pawl ratchet system without all these nasty plastic spacers. However, you might be hating Shimano already and prefer something different like Hope or DT Swiss. It's the best solution, but it'll be 4-5 more expensive in comparison to 410/510. Good luck anyway! 🤘
thanks for sharing the part number on the black spacer. My spacer on my XT hub failed today (white spacer). I'm in the United States and shimano USA has no stock available. I ordered a couple of them from the EU and paid a lot for shipping. Still much cheaper than a new hub. This is the hub's last chance. Next step is a rebuild with a DT Swiss 350.
Welcome, Francis! The old story, yeah! Sometimes even European retailers cannot help with a required Shimano part, and I have to go for Aliexpress 😂
I have the Shimano M8120 wheelset. I only ride trails and the creak started at about 40 hours. Replaced the yellow spacer with black one, and put special grease on it. After 20 hours it's creaking again. The bike is still in warranty, but I don't have time to waste. I'm buying the 410 ou 510 hub and try to relace with the same spokes. Plan B is DT Swiss 370, which is VERY expensive in my country.
Some people still believe (or want to believe) that the black spacer is a savior. Thanks for your experience, little by little we’ll debunk the black spacer myth either 😎
Any update after a year?
My experience so far: I have an XT hub with about 800 kilometers, noise free. I also xtr hub that started creaking in under 200 kilometers.
i´m 200k in and mine failed recently. thanks for your great explanation. I go with another wheel. :)
My recently bought XT rear wheel lastet 80km without creaking, took it apart yesterday and found the black spacer you mention.
After regreasing it's quiet again. Hope it lasts for the coming season without to much maintenance, over the next winter I'll consider switching to another Hub.
How’s the hub holding up after you regressed it?
@@mattk192 startet creaking after a little over 100km again. Tend to ignore it until it gets worse and probably replace the hub or the Wheel set in winter.
Reminds me of a saying I read lately--"newer is always better...even if it isn't...", or that's what they would like us to believe. I have two wheelsets with XTR 965 hubs. Never an issue with them...rock solid. From 2003-4-not sure.
“Built to last” now sounds like nightmare and suicide to a marketing dept of any “ambitious” company 😂 The best stuff shouldn’t last 😂
Just went out for a ride tonight , and sure enough this has now happened to me bits of plastic everywhere inside my hub , an hour of pulling it apart and putting back together, so annoying think I’ll be replacing hubs with Indy9 hydra
Sorry to hear, and welcome to “the club” 🤪
CEO at Shimano told me to throw all its products in the trash and buy DT Swiss instead and I did, I’m so happy.
I have roasted countless bearings in the 240S and the 240EXP. Another bike on XTR hubs I have never had to touch, thousands of miles later. If there is some trick to keep the rear hub bearings in the 240s from getting crunchy I would love to know it. Enduro Parks and downhill seem to really speed them on their way to their death, whereas the XTR, those things can take a beating, still smooth
@@JoeVan Pressed sealed bearings assemblies vs Shimano old school single bearing cup and cone set up?
I have had decades of trouble free XC service from minimally maintained XTR hubs.
Not sure but think Campagnolo may also still be using cup and cone bearing set up for their hubs.
I am a bit confused... Is this a problem with all Microspline hubs (e.g. DT Swiss 350/240 etc) or just the Shimano hubs? Thanks. PS Would be a bit of a problem for the road if the future road cassettes switch to Microspline from HG11...
Just the Shimano ones. SLX, XT, and XTR of 2019 gen. Microspline toothing is not a problem. The problem comes from freewheel arrangement inside these hubs. Even Shimano produces some Microspline models now without this problem.
I have put about 2,000 mi on the most recent XTR hubs. Still going fine. A lot of that downhill and enduro. I have yet to have the freehub problem but it seems like by design it will happen eventually. You kind of wonder why Shimano gave this the green light or did not use something more durable like aluminum rather than a plastic spacer. The previous XTR hub, the last HG driver was an absolute tank just like all the other XTR hubs. I noticed when I picked up this new version they did feel lighter but also not quite as durable. I'm happy the bearings are still decent which is something that I blow up routinely on cartridge bearing hubs. I also learned long ago never to use lower tier Shimano hubs. If it does not say XTR or dura Ace, use something else. I guess time will tell how long this set that I have will go
First of all, Happy New Year! Let your XTR hub miraculously stay away from all this mess. My road bike has Dura Ace drivetrain (not the hubs though), and after 20+ thousand miles I have zero complaints. What is more, HG901-11 "dura ace" chain is the most durable chain I've tried. Unfortunately, this kind of experience of a single person does not say much. You might have heard about a recent recall of up to a million of road cranks including lots of Dura Ace ones. The problem has been finally admitted by Shimano after 10 years of complaints. Without a doubt, Shimano has made lots of truly reliable stuff through the decades. But do top tier Shimano lines of today guarantee anything special in comparison to lower tiers? Absolutely not! 😉
@@ZavyalovCycling that is a very solid point, the bonding issue on the epoxy used on many of those cranks. Then the hub issue you bring up. I hope Shimano addresses the hub problem. Their previous hubs have all been pretty reliable. The lower ones obviously not going as many miles or being as smooth but still they did their job. The cranks that looks like or at least they claim to have fixed from this point forward. The part I always found suspicious is they said ultegra and dura ace but xtr 9100 and 9120 / 9130 also use a bonded crank. There was no mention on what was different that I could find
My XT hub came with the white spacer. It crumbled and locked up freehub. Got the black spacer on warranty. Same problem but lasted longer. Have been running 1,5 year without the spacer now. But today the aluminum axle broke on a big jump. So when I got home I replaced it with the steel axle from an slx spare hub.
Super curious to see the connecting teeth after these 1.5 years without a spacer 🤪 Must look like hell 😀
@@ZavyalovCycling looks fine the spacer is just a stupid anti rattle thing. Of cause it will wear out when sitting in between teeth transferring power.
I just ordered a DT 350 hub instead.
These hubs are embarrassing for Shimano compared to they older generations lasting for decades.
Because they are absolutely shite! I had 3 in 3 months. I would never use them again
And I was wondering who kept taking the hubs from the shelves 😂
So all microspline hubs suffer from this problem?
Any update on the hub, it's dead or still going?
Hi! For 99% I've been doing road cycling the last year. The new XT hub doesn't have enough mileage for a new video so far. Nevertheless, my advice is to avoid this gen of Shimano MTB hubs at all costs. If you already own one, just accept that it is a pain in ass or replace with another brand.
This probably happens when you use soft aluminium for heavily loaded gears that also are tiny
Absolutely agree! The tiny aluminum teeth wouldn’t stand a chance against stress and load that happen in the unit. Whatever plastic spacer you put to mitigate this.
Have play in my shimano FH-MT510 went to a shop he said they are seeing lots of these. Switching to DT Swiss and not buying shimano anymore.
Pity! Both 410 and 510 looked simple and solid on exploded view diagrams.
Todo esto para pasar a un piñon de 10 dientes y 12 velocidades es innecesario. 🙄😵
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Mine has completely collapsed
now in my old days i started to destroy old hubs from last century, these new would last probably one uphill ride
Things don’t necessarily get better with time, true 😂
Same shitty problem here 😢
the design was overly complicated. and most importantly did not give user any other value added features other than problems. even my cheap china made hub does not fail in its entire service life.
@Maciej_Jan_Dlugosz Choice of material is part of design. and I am questioning how Shimano tested the hub considering so many user experience failure in just a month.
Ffs I've done 5000km....