Shimano Rear Derailleur Alivio M3100 9spd

Shimano 9-speed Alivio rear derailleur.

Key Features
• Suitable for on- and off-road for 9-speed drive trains
• Super low-profile Shadow design to reduce risk from impacts
• 11-tooth pulleys for reduced pulley wear and chain noise
• Advanced light action design with low friction fluorine coated link pivot bushings
• SGS long cage for use with 32 to 36 tooth low rear sprockets, total capacity 45 teeth
• Top-normal swing design