DtEW
Active member
I checked chain length it is at 6 links extra, which is what the manual recommends 5-6 for Full Suspension.
Check to see if it is 120 links (linker included). That's the length of chain that comes stock.
I checked chain length it is at 6 links extra, which is what the manual recommends 5-6 for Full Suspension.
At 0:35-0:36 you can see the chain keep tension on the driven side even with just one tooth holding, while the following links failing to fall into the succeeding teeth. If things were assembled correctly, I'd say those cogs are worn.
That said, you did mention cassette and wheel changes, so I'd also check if the clocking of the loose 12T and 10T cogs are correct. It is entirely possible to get that wrong with the smaller "teeth" of the Microspline, and have the cogs slightly tilted relative to the rest of the cassette. Just taking the wheel off the bike and spinning the cassette on the freewheel while inspecting it edge-on will tell you.
Of course, this is all assuming the hanger is aligned, and the B-tension and H-L are all properly adjusted.
Check to see if it is 120 links (linker included). That's the length of chain that comes stock.
So it is worn after about 200 miles of riding with maybe 20% of those miles in 12t or 10t, so maybe 40 miles. That just seems very short life, but I suppose it can happen. Am I the only guy wearing it down that fast?
Just tried my neighbors rear wheel with SRAM XG-1275 GX Eagle 12-Speed Cassette and no slipping at all.
Looks like I'll be swapping wheels when I get a chance, just like the original poster.
I'll order some replacement 10t and 12t cogs for now if I can find any, seems to be sold out everywhere....(Shimano part #Y1X498020)
I already have a 36t chainring on order too, so I can stay away from 12t and 10t.
Have you put a new chain on?I'm going through the same chain slipping nightmare on a Trek Rail 9.8XT. 400 miles in and its skipping on 12th gear. What sucks about the Trek is that it is 34T front chainring max so no upsizing the chainring to avoid. I'm trying to just replace the two smallest cogs but can't find that part number in stock anywhere. Y1X498020
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