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Shimano Ultegra SM-BBR60 Bottom Bracket Hollowtech

Size

Genuine Shimano Ultegra SM-BBR60 Hollowtech II 2 piece bottom bracket assembly includes left and right hand cups, spacers, inner cover, and inner O-rings.

HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency.

Seals have minimal bearing interface ensuring smooth rolling and increased durability.

Choose from either 68mm (BSA) or 70mm (ITA) versions.

Anodized bearing shells
Small ball bearings for low weight
Inner bearing cup: aluminium
Inner bearing sleeve: GFRP

 

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