Shimano Ultegra SM-BBR60 BSA Bottom Bracket Cups Hollowtech II
SM-BBR60 bottom bracket cups for the new Ultegra Hollowtech II crankset FC-6800. Suitable for frames with (B.C.1.37" x 24T) English thread.
Features
Outside positioned bearings for better weight distribution and more stability
Bottom bracket has smaller, bearings than current model for lightweight
New improved sealing ensures 50% less drag
Product features
Use: Road
Gruppe: Ultegra
Model: SM-BBR60
BB-Type: HOLLOWTECH II
Threaded: BSA
Threaded BB shell width: 68mm
Shell diameter: BSA (BC 1.37)
Compatibility
Dura Ace FC-9000
Ultegra FC-6800
105 FC-5800
Material
Aluminum
Weight
77g