Feature●Compatible Crank: Shimano Axle Diameter: 0.9 inches (24 mm); Weight: 5.0 oz (143 g); Material: 7075 alloy (BB body), hybrid ceramic bearing (ceramic bearing and steel cage); Tightening Torque: 30 Nm BBs left and right shell is screwed into the mechanism to avoid noise and achieve high durability. Please use genuine tools (sold separately) as there are regulations torque for tighteningDescription
Compatible Crank: Shimano Axle Diameter: 0.9 inches (24 mm); Weight: 5.0 oz (143 g); Material: 7075 alloy (BB body), hybrid ceramic bearing (ceramic bearing and steel cage); Tightening Torque: 30 Nm BBs left and right shell is screwed into the mechanism to avoid noise and achieve high durability. Please use genuine tools (sold separately) as there are regulations torque for tightening.