Shimano ZEE RD-M640-SS Rear Derailleur - 10 Speed Short Cage Gray With Clutch Wide Ratio Freeride ColorColor-Copper Compared to previous RockShox dampers

Compared to previous RockShox dampers Charger2 provides a wider range of low speed compression adjustment in the Open mode with a more usable Pedal setting that excels on rolling trails and a lighter feel at the top cap

Advanced materials provide breathability to keep you dry from the inside

The Maxxis Detonator with its dual compound tread pattern provides a durable training tire with a race pedigree

Weight: S: 288g

In addition to 8-Speed cassettes this rear derailleur is also compatible with 12-42t and 12-46t 9-speed cassettes (requires Advent 9-speed shifter)

Shimano ZEE RD-M640-SS Rear Derailleur - 10 Speed Short Cage Gray With Clutch Wide Ratio Freeride ColorColor-Copper Compared to previous RockShox dampersShimano ZEE RD M640 SS Rear Derailleur 10 Speed Short Cage Gray With Clutch Wide Ratio for Freeride. Shimano ZEE RD M640 Rear DerailleursShimanos stabalizing Shadow RD+ clutch technology is proven to reduce chain slap and noise TECH SPECS Largest Cog 36 Color Gray Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Drivetrain Speeds 10 Weight 250 Chain Wrap