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I had this problem on an old mountain bike. I changed the derailleur and it doesn't do it now. I noticed the old one was not screwed in very tightly when swapping out so this could have caused it. I had a broken spoke and thought this caused it, re-spoked wheel with all new spokes. I also swapped out the freewheel as I thought maybe the pawls had worn ...


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It should not take 2-3 revolutions to shift modern chainrings. There are possibly a few things going on. Your larger chainring does not have the pins and ramps required to shift quickly. Sometimes cross sized rings don't have all the bells and whistles. Your big chainring should have those features. If it doesn't get a new ring. Race Face and Black ...


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Yes higher end riders will go with a larger front chain ring on parts of some courses or they would not have one. Higher end will shift faster and it could also be an adjustment thing. And some riders go with just a single up front (e.g. SRAM has the CX1). With a 9 speed in back it is harder to get the range with a single up front but with an 11 speed in ...


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Thanks for the answers, guys. For the benefit of anyone who's come across this with the same issue: As you both suggested, a bent derailleur hanger was indeed the problem, and bending it back out with a spanner and re-indexing resolved the issue (although shifting isn't quite perfect). I falsely assumed, with my limited experience, that this problem ...


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I can't see how a flat inside ring with no pick-up points machined into it wouldn't be compatible, providing the bolt patterns match up (which they do, I think). The bolt patterns are compatible. There are two reasons why the chainrings still may be counted as non-compatible: Not all Shimano chainsets have identical fitting of the chainring, ...



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