Shimano BB-R60 Ultegra 6800/105 5800 Hollowtech II bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency.
Features:
Material: Aluminium (Cups); Steel (Bearings)
Recommended Use: Road cycling and racing
Shell Type: External
Thread: English (BSA)
Shell Width: 68mm
Required for installation of FC6800/FC5800 chainsets
Please Note: TL-FC25 bottom bracket installation tool is not included