Shimano
Shimano Ultegra SM-BBR60 BSA Bottom Bracket
$39.95Bottom bracket cups for Shimano Ultegra FC-6800 Hollowtech II cranksets.
14g lighter weight and half the friction of the SM-BB6700. Bottom bracket bearing cups with smaller than before.
Specifications
Material: Steel, Aluminium
Case width: 68 / 70mm
Bracket, length of axle: Hollowtech II
Required Tool: Shimano TL-FC25, TL-FC32, TL-FC33, TL-FC36 and TL-FC37