Shimano ZEE RD-M640-SS Rear Derailleur - 10 Speed, Short Cage, Gray, With

Shimano ZEE RD-M640 Rear Derailleurs

• Shimano's stabalizing Shadow RD+ clutch technology is proven to reduce chain slap and noise
• Close ratio option is designed for DH riding

• Largest Cog: 28
• 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 Capacity (teeth): 25
• Cage Length: Short