SHIMANO Ultegra bottom bracket SM-BBR60 | BSA
Technical specifications:
Intended use : Road, Cyclocross
Material bearing shell: aluminum
Material bearings: steel
Bearing type: BSA
Inner bearing housing width: 68 mm
Inner bearing housing Ø: 34.8 mm (with BSA thread)
Crank shaft diameter: 24 mm
Compatibility crank: Hollowtech II cranks of Shimano, Ultegra cranks
Stock: Shimano Ultegra
Tool holder: Hollowtech II tool + TL-FC25 adapter