Campagnolo derailleur misaligned on two cassettes
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Campagnolo derailleur misaligned on two cassettes
I have two wheelsets. One with a Campagnolo Chorus 11-29 on a Campagnolo Zonda and a Chorus 11-32 on a Bora Ultra. I like to swap the wheelsets out to keep the Boras from getting gritty winter usage. When I install the Zondas the chain will hesitate dropping down to the middle cassette rings whereas on the Bora cassette all the down shifts are smooth. I loosen the cable knurled knob a half a turn and that remedies the hesitation. I'm wondering why the cassettes have this bias, I checked the spacers between the cassette sections and they are per spec.
Last edited by dvizz; 12-22-21 at 06:53 PM.
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Your thread title should be reversed: "Two cassettes misaligned on Campagnolo derailleur"
The RD is attached to the dropout. If the cassette on each wheel is the same distance from the dropout, & thus the RD, they will shift the same.
The trick is to shim between the freehub body and the back of the cassette so that the small cog is the same distance from the axle locknut (or equivalent) on both wheels.
This can be done with shims cut with knife or scissors from beer cans- about 1mm.
The RD is attached to the dropout. If the cassette on each wheel is the same distance from the dropout, & thus the RD, they will shift the same.
The trick is to shim between the freehub body and the back of the cassette so that the small cog is the same distance from the axle locknut (or equivalent) on both wheels.
This can be done with shims cut with knife or scissors from beer cans- about 1mm.
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I have two wheelsets. One with a Campagnolo Chorus 11-29 on a Campagnolo Zonda and a Chorus 11-32 on a Bora Ultra. I like to swap the wheelsets out to keep the Boras from getting gritty winter usage. When I install the Zondas the chain will hesitate dropping down to the middle cassette rings whereas on the Bora cassette all the down shifts are smooth. I loosen the cable knurled knob a half a turn and that remedies the hesitation. I'm wondering why the cassettes have this bias, I checked the spacers between the cassette sections and they are per spec.
Last edited by Litespud; 12-22-21 at 07:26 PM.
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#5
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For what its worth I have found this issue within brand using Shimano hubs. When a customer asks about a second wheelset, I always recommend using the same hub for a second wheelset as it will minimize compatibility issues.