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 always stays in the right place, regardless of the conditions. Direct mount chainrings from 38T to 46T. DUB™ bottom bracket ensures 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 is suitable for both Road and MTB bottom bracket standards, for unparalleled cross-compatibility between brands. Compatible with 135, 142, and Boost rear spacing. Sram Article number: 737879 EAN code: 710845916052 Supplier number: 00.6118.742.005 Retail packaging: Yes