Shimano XT M8100 12s Set gruppo deragliatore posteriore + Set cambio destro OE

SHIMANO DEORE XT - Rear Derailleur - SHIMANO SHADOW RD+ - 1x12-speed. SHIMANO DEORE XT Rear Derailleur 1x12-speed. Decreased rear derailleur and chain tension in low gear. New bumper added to rear derailleur pulley cage.

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