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Discussion Starter · #1 ·
Hello Everyone,
Don't know if anyone has encountered this or not, but in the process of cleaning my chain, I noticed that when I turn my crank arms and then let the wheel and cassette spin freely, I noticed that my cassette has a slight wobble to it. It spins true however once I continue turning my crank arm again. I have checked everything that I can visibly tighten, and I know my wheel spins true. Any insight would be greatly appreciated.

TIA:thumbsup:
 

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Every hub I have does this, several brands, even one that is brand new + quite expensive. It's always bothered me. What exactly causes that? I'm assuming it's in the hub, not the cassette, whatever is causing the wobble?
 

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I noticed this also on mine. Not so sure the whole cassette is wobbling though. Looks to me the cogs are designed in a pattern such that gives the illusion they are all bent in one area which I'm guessing is part of what aids the chain and derail in shifting.
 

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It's the freehub - shimano's do this because they wear out and get play in them. This is the main reason why I don't like Shimano hubs as their freehubs just aren't that durable (and the engagement points suck!). It is not really anything to worry about - if it gets worst then maybe look into replacing the freehub/hub with something better. You shouldn't be able to notice it while on the bike.. unless yours get bad enough (seen it happens once or twice on XT hubs) that it starts to affect shifting.. but this was ALOT of play..

Not all hubs do it - look at a king, hadley, hope or I9 and you won't see this play... Although it is quite common in most cup and cone style hubs.. shimano, ROLF... :)
 

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Discussion Starter · #10 ·
Thanks very much for all the input!! It's not that bad right now, my bike's only a couple of months old with about 40hrs. riding time. I wouldn't have even noticed it, except when I was cleaning my cassette and derailleur. As long as I know I'm not doing any further damage to any other components I'm fine with it. Maybe I'll replace it in the fall, after getting some use out of it....

Thanks again!
 
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