Shimano Alivio RD-M3100 Rear Derailleur - 9-Speed | Long Cage Hydraulic Brake Service It mounts to bikes with

It mounts to bikes with compatible 18mm mounting provisions on the chainstay

workstands

with small ball bearings that reduce rotational mass and contribute to the lower weight without sacrificing the durability that Dura-Ace requires

Tubeless-ready construction lets you run low pressures to maximize traction and absorb trail chatter on rough surfaces

Replacing a damaged

Shimano Alivio RD-M3100 Rear Derailleur - 9-Speed | Long Cage Hydraulic Brake Service It mounts to bikes withWhy Choose the Shimano Alivio RD M3100 for Your 9 Speed MTB Build? The Shimano Alivio RD M3100 is a capable 9 speed MTB rear derailleur that brings Shadow RD low profile design to an accessible price point, keeping the mechanism protected from trail obstacles while reducing chain slap and improving chain retention on rough terrain. The long SGS cage handles cassettes up to 36t with 45t total capacity, giving riders ample range for varied terrain