SHIMANO BOTTOM TRAPAS SM- BBR60 ITA
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.
HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability
Required for installation of FC6800/FC5800 chainsets
Also suitable for use with 5700 and 6700 series chainsets.
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