- Patented X-Sync chainring technology provides unparalleled chain retention as part of a complete SRAM 1x system
- Integrated 4-arm, asymmetric spider maximizes stiffness to weight
- Greater frame and tire clearance than other road cranks, 2mm per side
- SRAM 1x road 10-speed and 11-speed compatible
- SRAM Model ID: FC-APX-1-A1
