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I wanted to adjust the rear derailleur and loosened the cable to begin. The twister shifter was working before loosening, now it isn't

Bicycles Asked by Ute Morris on June 23, 2021

The rear gears (6) were not adjusted properly and the biggest cog was allowing the chain to jump off next to the wheel. I know now I should have just adjusted the L-screw. But didn’t realize that at the time, so went on the Internet to look.

I wanted to adjust the rear gears, so checked a forum. I was asked to loosen the cable with the chain on the smallest cog and adjust the up and down for the chain and cogs. All good. Then retighten the cable. After that I couldn’t get the twister shift to move at all!

So, what did I do wrong?

One Answer

This is only a suspicion, but: something I've seen before, when re-cabling such shifters, is that the cyclindrical end stop on the cable isn't seated properly in the correct position, and jams the rotation. It's possible to push on the cable and push the end stop out of its seat, then pull without pulling it back into place. This is particularly true if the cable gets twisted, and the bend that naturally forms inside the shifter over time will point the wrong way.

You might get away with loosening it again, jiggling and pulling, perhaps jiggling the shifter as well. On the other hand you may need to open the covers on the shifter (usually not hard) and nudge the end stop into place.

Answered by Chris H on June 23, 2021

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