As I understand it, the Guide or upper pulley in a rear derailleur has some built in side to side movement. Is this correct? And the lower or tension pulley has no side to side movement.
This seems backasswards to me, as the guide pulley lateral play would require more movement of the derailleur to shift gears. If their was no side play in the guide pulley, would it not shift better?
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Thread: Guide Pulley Lateral Movement?
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