SRAM Crank X01 Eagle GXP 175 12 Speed w 32T X-SYNC 2 Direct Mount Chaining, Black The strongest, stiffest, lightest crankset available All-new SRAM carbon tuned crank technology provides extreme stiffness and light weight All-new chain ring technology is designed specifically for eagle chains and drivetrains The X-SYNC 2 chain ring provides significantly quieter performance, with better mud clearing and extraordinary durability