175mm 32T X-SYNC 2 Direct Mount. Chainring Size 30T, 32T (supplied), 34T, 38T. SRAM X1-Carbon DUB Crankset Boost 148 Eagle 11/12 Speed compatible. BB Compatibility All SRAM MTB WIDE DUB BBs, DUB BSA MTB 100, DUB PF MTB 121, DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP.
