[Closed] SRAM X01 - grinding noise

No different to mine on grinding, muck + n/w jockey wheels and everything being tighter = grinding noises. I keep mine a bit cleaner than the 10spd bikes as it's not £40 for a chain and cassette...

Never had a jumping chain though, but I don't really ever backpedal?

My XX1 was getting grindy and felt like it was skipping on the 42T.. read up and a lot of people suggesting it was the front chainring wearing (often very quickly). Flipped it over and so far it has been much better on both counts..

yes... any muck or flith on there and it's noisy... (i've had it with XX1, X01 and 1x10 with a N/W chain ring)... it's a 'feature' i think 🙄

i've found giving the drive chain a very through wash after every ride and then applying this stuff, liberally, has been the best solution. but this time of year, in the the thick, wet, deep crap we have to contend with is just something you have to learn to live with 🙁

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no chain jumping or back pedalling issues though

riding in summer is glorious

Well, at least I'm not alone and will have to keep reminding myself that it's a "design feature". I've swapped chainslap for grinding 🙄
Thanks for the tips though ... I'll try some of that Lube and I wasn't aware that the chainring could be flipped.
On the plus side ... the chain is showing very little sign of wear.

check that teeth on chainring aren't offcentre as on my xo 30tooth ring or itll throw the chainline right out if you flip it!!!

The grinding is the chainring wearing - the chainline in the lowest gears is pretty poor, so as the chain comes onto each tooth it's rubbing - the thin teeth on mine have worn very thin indeed over the winter. Still seems to hold the chain OK though.

I'm running XO1 its defintely very sensitive to muck getting in, the jockey wheels pick up mud pretty easy, I ended up switching chainlubes as my old one kept catching all the crap it could find, since swapping the chain has been much cleaner and less sensitive, I would try switching lubes I'm using muc off ceramic wet at the moment.

Pretty sure on mine If you back pedal mine in the 42T it jumps down after a couple of spins but only in the 42.

Yep +1 for muc off ceramic, i use the dry stuff and clean the chain after every ride with fresh application and its been perfect, was advised by someone who spoke to sram mechanic at race meeting. 🙂

It's strange how none of the reviews in the bike magazines ever mention this.
Nevertheless, thanks again for the useful tips.

Same issue here too.

Found that the SRAM narrow-wide rings seem to wear quicker than others - got through two in fairly short succession. Had a Blackspire ring on for a while now and seems to be quieter, wearing better and still keeps the chain in place. Maybe the wide teeth aren't quite as wide?

Look forward to hearing whether the Shimano XTR type tooth profile run any quieter and deal with dirt better.

i had a similar problem with mine afrter 6 months or so, particularly in the mud. felt like the jockeywheel teeth were misalinged or something and spend a while tweaking things to improve it with no success.

replaced the jockey wheels and its spot on again now. i think the bearings had just been blasted with water too much as they were certainly pretty loose. no worse than a standard deralier, however with the n/w teeth they have much less margin for error.

most jockey wheels on google are £60 ceramic ones. but you get ones with normal bearings for £20 if you look.

Has anyone tried ordinary jockey wheels on the X01 mech, as a replacement for the N/W ones that it comes with?

Can you get 12t normal pulleys

[quote=coblck]Can you get 12t normal pulleys

KCNC do some.. whether that's sufficient to make them compatible, I don't know.

Absolute Black also do some XX1 specific ones.

Muc Off Ceramic did the trick for me too, been using it since October and have had very little noise/grinding.

Cant seem to find the absolute black pacific 12t pulleys been on there web site have you a link or info

[quote=coblck]Cant seem to find the absolute black pacific 12t pulleys been on there web site have you a link or info

Can't see them on the AB site.. but one or two German retail sites have [url= http://r2-bike.com/ABSOLUTE-BLACK-Pulleys-narrow-wide-for-Sram-XX1-X01-X1-22g ]them[/url]..

Update:
I tried the Muc-Off C3 dry yesterday (couldn't find any of the Squirt stuff in time). 10 mins into the ride and no sooner than I encountered some sludge, the grinding returned. However, it did eventually clear up and I think the dry lube helped some of the muck drop off. The skipping off the 42t cog didn't return neither (which is good).
My conclusion so far is that the 1x11's tolerances are tight and , coupled with the N/W teeth, the grinding is something that we have to live with. However, I am going to try different jockey wheels as they seem to be the root of the problem.

As a side note: Yesterday's ride was in Calderdale and, by comparison, the problem is much worse when riding in the Dark Peak gritstone grinding paste.

My setup was making a grinding noise & skipping cogs when I back pedalled yesterday.

I adjusted the cable tension very slightly (tightened) & it went away.

Update:
C3 Dry Lube works well & reduces mud/grit affect - but still noisy and grinding after a few puddles

Solution: As the cassette and chainring had worn out (a bit too quickly in my view) I replaced the X01 cassette with X1 cassette (wallet based decision), the XX1 chain like for like & the X01 chainring with a Blackspire Snaggletooth (review and need for an alternative based decision) ... 25 miles in the muck of Calderdale yesterday and not a hint of grinding & 1 x 11 suddenly became a joy to use.
Anecdotaly, I can't see that the X01 v X1 cassette would make a difference as they're the same profile. I'm guessing the biggest influence is the Blackspire chainring.

Any thoughts?