Stone Chainring For 12s Shimano M9100 M8100 8100 7100 6100
- Material: High strength Aluminum 7075-T651
- Speed: 9/10/11/12 Speed
- Chainline: 52mm
- Force angle: 110°-112°
- Fit for: RF Next SL/RF SIXC/RF Turbine/RF Atlas/AEffect Cinch
- Thickness: 8MM
- PS: fit for BOOST148 frame;There is only one installation angle.
- Material Hardness: HB150
- Color: black