Shimano Altus RD-M310 Rear Derailleur - 7, 8 Speed, Long Cage, Black 2027 Union Bindings deliver an ultra-fast

deliver an ultra-fast

Molded utilizing precision 3D machined molds for exact tolerance

Meanwhile proportional chainstay lengths mean handling is never compromised

Low-profile cuff

Thunder Quick Turn Response

Shimano Altus RD-M310 Rear Derailleur - 7, 8 Speed, Long Cage, Black 2027 Union Bindings deliver an ultra-fastThe Shimano RDM310 Smart rear derailleur has a Wide Link design for increased rigidity and precise shifting. Oversized 15 tooth tensioner and 13 tooth guide pulleys reduce noise and wear SMART CAGE pulley plate provides more ground clearance Advanced light action with precise shifting Compatible with Shimano HG 6 7 8 speed chains 7 8 Speed 13t upper and 15t lower pulleys