Rear cassette
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allan



Joined: 13 Mar 2010
Posts: 332
Location: Glasgow

PostPosted: Sat Aug 08, 2015 9:33 am    Post subject: Rear cassette Reply with quote

During a ride I noticed a strange noise from rear cassette. I felt like the back wheel felt a little unpredictable. Almost as if it was loose but following a few checks I never found anything. I have since stripped the wheel down expecting to find bearing shot, the drive side bearing did feel a little lumpy but nothing serious. I will replace both bearing anyway, Few questions am hoping someone can assist with.

1: I am running a 11 speed rear hub with only 10 cogs I presume there is adequate spacers however there does seem to be a little play on all of the cogs. Should they all be compressed tightly onto each other to avoid any play?

2: should I replace the bearing in the freehub assembly since I now have it off? They run smooth at the moment?

Thanks

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ReignOfFire



Joined: 15 Aug 2013
Posts: 44

PostPosted: Fri Aug 14, 2015 5:42 pm    Post subject: Cassette Reply with quote

As far as i am aware there should be NO PLAY at all between the cogs, otherwise every single time you push on pedals, the cog hits the hub damaging it.

I don't know how it works on 11 speed, but on my MTB 9 speed i have deore XT which has full alloy spider on the 5 largest cogs, preventing this from happening.

Cassette should be tight enough not to move without the hub rotating.

I would advise to replace it or at least strip it down completely and clean thoroughly - so not even a grain of dirt is between cogs and spacers. Then put on the hub (also squeaky clean) and tighten.
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