SB-packed, square taper (12.73 mm), BSA thread 1.375" x 24, 68 mm shell width, durable, maintenance-free, weather-resistant. Left bearing cup with functional shoulder (FS), axle made of specially hardened material (ML-treatment), Certification: ISO 4210-8 (MTB). Optimal rotation quality due to double-sealed deep groove ball bearings, galvanized steel sleeve to protect the bottom bracket, bearing cup made of Composite A, incl. 2 hexagon socket screws with polyamide patch coating and clip ring, installation note: tightening torque cup: 25-30 Nm (assembly without grease); tightening torque screws: 42-45 Nm, Made in Germany Axle length 127.0 mm Axle standard ISO Type Item Version square taper Main color black Bearing type Industrial bearing Secondary color silver Bottom bracket standard BSA Bottom bracket shell width 68 mm