- FOR REAR 11-SPEED, FOR CHAIN LINE 51.8MM
- Does Not Include BB PARTS
- Includes GEAR FIXING BOLT & NUT
- FRONT CHAINWHEEL, FC-M8000-B2
- Does Not Include CHAINRING
More maneuverability and aggressive riding realized. Better cornering & climbing traction Improve rigidity of 29/27.5in wheel Shorter chain stay of frame Wide tire compatible New standard of wide OLD and chain line.