NEW Shimano ZEE RD-M640-SS Rear Derailleur - 10 Speed, Short Cage, Gray, With Clutch, Close Ratio For DH chain_12speed degrade or soften in extreme

degrade or soften in extreme weather

Upper Stack Height: 16

Diameter: 14 mm

Tubeless ready (TR) casing

Formulated specifically for bicycle brake systems

NEW Shimano ZEE RD-M640-SS Rear Derailleur - 10 Speed, Short Cage, Gray, With Clutch, Close Ratio For DH chain_12speed degrade or soften in extremeShimano ZEE RD M640 Rear Derailleurs Shimano's stabalizing Shadow RD+ clutch technology is proven to reduce chain slap and noise Rear Derailleur Mount Type: 10x1 Standard Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Der Shifter Compatibility: Shimano Mountain Cage Length: Short Drivetrain Speeds: 10 Weight: 250 Color: Gray keyword search: Shimano2018 Chain Wrap Capacity (teeth): 25 Largest Cog: 28