SHIMANO Ultegra Bottom Bracket BB-R60
|Description||HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency.
Seal design has minimal bearing interface ensuring smooth rolling and increased durability
Minimal bearing interface gives superbly smooth rolling
British thread (1.37" x 24TPI)
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.