For Shimano Altus Rear Derailleur RD-M310 7/8 Speed Bike Bicycle Cycle UK

Model: RD-M310 Altus. 1x RD-M310 Altus Rear Derailleur (Long Cage - Black). Electric Cervical Neck Vibration Massager Pain Shoulder Relief Body Muscle Relax. Mount Type: Standard derailleur hanger mount.

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