• Also known as BB86 (road) and BB92 (mountain) standards• Includes 37 x 24 x 8 bearings seated in press-fit nylon cups• Required bottom bracket shell dimensions: 86 x 41 mm (road) and 92 x 41 mm (mountain)• Available with ceramic (Blackbox) or stainless steel (Team) bearings
Ultegra/105-level BB86 press-fit bottom bracketShimano, SM-BB72-41B, Press-fit, Shell: 86.5 mm, Dia.: 41 mm, Axle: 24 mm, Steel, Grey, ISMBB7241BCompatible with all Hollowtech II road cranksets