Your eyes do not deceive you. Welcome to our most advanced aluminum gravel crankset. Careful engineering has resulted in crankarms that optimize stiffness to weight ratio, with material only where it’s needed. And our X-SYNC chainrings are unbeatable at keeping your chain where it needs to be.

• Direct mount chainrings in 38T through 46T
• DUB™ bottom bracket adds durability and simplicity
• SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
• Wide chainline for compatibility with Full Mount rear derailleurs
• Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands
• Compatible with 135, 142 and Boost rear spacing
• Model ID: FC-RIV-1W-E1