The SRAM Rival Wide E1 is SRAM's most advanced aluminum gravel crankset. Through careful design, the crank arms are optimized for the perfect stiffness-to-weight ratio, with material only where it's truly needed. The X-SYNC chainrings ensure the chain stays in the right place, regardless of the conditions.Direct mount chainrings from 38T to 46TDUB™ bottom bracket ensures durability and simplicitySRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain controlWide chainline for compatibility with Full Mount rear derailleursLonger DUB crank spindle accommodates both Road and MTB bottom bracket standards, for unparalleled cross-brand compatibilityCompatible with 135, 142, and Boost rear spacingSram Article number: 737876 EAN code: 710845916021 Vendor number: 00.6118.742.001 Retail packaging: Yes