Shimano Alivio RD-M3100 Rear Derailleur - 9-Speed Long Cage CheckoutTitle=Phil Wood Spoke Gauge & Length Ruler The hexagonal anti-roll feature prevents Includes 12mm end caps

Shimano Alivio RD M3100 Rear Derailleur 9 Speed Long Cage CheckoutTitle=Phil Wood Spoke Gauge & Length Ruler The hexagonal anti roll feature prevents Includes 12mm end caps The hexagonal anti roll feature prevents any bothersome rolling away at the workplace The front mounts to the fork bridge with a rubberised hook and loop fastener or a cable tie Super low profile Shadow RD technology Largest Cog 36 Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 9 Chain Wrap Capacity (teeth) 45 Cage Length Long The Shimano Alivio RD M3100 Rear Derailleur features Shadow RD technology to keep the derailleur safe from trail obstacles