Join Date: May 2004
Location: Southern California
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Originally Posted by eric von zipper
1. Did you replace your chain recently?
No, but I did get a new wheel set and put the old cassette from the rear wheel on the new.
2. Does it shift both up and down the cassette?
3. Does it occur when under load or no load?
I'm not sure what you mean by 'load.' If you mean me being on the bike, then yes it does.
1. If you replaced the chain or cassette without replacing the other, I would've said you need a new cassette or chain, respectively. It sounds like you have the same drive train as before since you transferred the old cassette to a new wheel; hence one would not expect a problem.
3. No load would be spinning the crank in a repair stand (or holding the rear wheel off the ground and cranking. In my (limited) experience, I often find the bike to shift fine and act "normal" when there is no load applied. However, when riding, gremlin shifts would occur. In my case, I've always found the cassette to be worn.
4. Did you break the chain open recently? For swapping out a rear wheel, you would not have to remove the chain, but perhaps you were in a cleaning frenzy and soaked the chain. If you did break the chain, you might have a stiff link (assuming you don't have a Powerlink type of master link).
5. Finally, I doubt it would make a difference, but experiment by putting the cassette on the old wheel and see if the problem persists. Perhaps the new wheel isn't aligned properly in the frame.