Old 04-14-21, 02:43 PM
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cxwrench
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Undo the cable from the derailleur and see if it moves smoothly. Also check the cable, is there a bunch of drag when you press the 'downshift' paddle on the shifter? This is pretty simple stuff. There are 3 parts to the system:
The shifter
Cable/housing
The derailleur
Separate them and you'll find the problem.
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