Shimano's RD-M663-SGS is compatible with Shimano's 10-speed mountain bike drivetrains. For use with double or triple chainring setups.
Weight: 269g.
SLX features Shimano's Shadow design rear derailleurs for superior trail clearance and crisp shifting.
Thanks to new, more direct cable routing and the reduced cable tension, Dyna-Sys is less sensitive to contamination, cable stretch and cable routing concerns, which all adds up to more consistent performance in even the roughest terrain.
- Series: SLX
- Shifting Action: Top Normal Shadow
- Maximum Sprocket: 36T
- Minimum Sprocket: 11T
- Total Capacity: 43T
