NEW Shimano Altus RD-M310 7/8-Speed Long Cage Rear Derailleur Black inventory-parts-components-saddles-seats numbness and fatigue without the

numbness and fatigue without the price or durability concerns of a carbon bar

Great for smaller frames or when main triangle space is being shared with a frame bag

Safe for use on carbon fiber parts

American-made steel frame construction

Aggressive trail geometry

NEW Shimano Altus RD-M310 7/8-Speed Long Cage Rear Derailleur Black inventory-parts-components-saddles-seats numbness and fatigue without theShimano Altus RD M370 M310 Rear Derailleurs Rear Derailleur Mount Type: 10x1 Standard Rear Der Shifter Compatibility: Shimano Mountain Cage Length: Long Drivetrain Speeds: 7 Drivetrain Speeds: 8 Weight: 326 Color: Black Chain Wrap Capacity (teeth): 43 Largest Cog: 34