sram-force-1-bb30-bb386-175mm-crankset-w-42t-x-sync-chainring-bearings-not-included
sram-force-1-bb30-bb386-175mm-crankset-w-42t-x-sync-chainring-bearings-not-included, Carbon fiber arms with structural foam core provide excellent strength-to-weight. Tall teeth with alternating narrow and wide profiles retain chain over rough terrain.Hidden" chainring bolt threads into crank arm to enhance chainring stiffnessQ-factor is 145mm