SHIMANO DEORE XT M8100 features two rear derailleurs that enhance shifting performance for both single and double front chainring setups. The derailleurs feature larger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.
RD-M8100-SGS Rear Derailleur for 1x Setup
- For single front chainring setup
- 51T max cog size
- Works with both 10-51 and 10-45-tooth cassettes
RD-M8120-SGS Rear Derailleur for 2x Setup
- Designed for double front chainring setup
- 45T max cog size
- Compatible with 2x12 speed or 1x12 with 10-45 cassette
