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
Description
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