Question about Sram X7 Mountain Bike Rear Derailleur
If you mean the chain is switching between the gears maybe you just need to adjust the indexing so it is precisely aligned with one gear at a time. If it is skipping over the teeth in certain gears like the one(s) you use most, look for worn teeth front or back or 'stretched' chain.
If you have either, replace the whole drivetrain as new parts will not match up with worn ones.
Posted on Apr 06, 2011
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Posted on Jan 02, 2017
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