Fit & Design:
Patented X-Sync™ chainring technology provides unparalleled chain retention as part of a complete SRAM 1x systemX-Sync™ tooth design provides maximum chain controlIntegrated 4-arm, asymmetric spider maximizes stiffness to weightGreater frame and tire clearance than other road cranks, 2mm per sideSRAM 1X road 10-speed and 11-speed compatibleCompatible with 130 and 135/142 OLD framesNumber of chainrings: singlePedal spindle: 9/16"Rings: 42 toothBolt circle diameter: 4-bolt 110mm asymmetricChainline 45.5mmSpindle interface type: Truvativ GXPAluminum chainring and crankarmsGX cups not includedBottom bracket not included