SHIMANO ULTEGRA SM-BBR60 ITA HOLLOWTECH II BOTTOM BRACKET electric_hardtail Its close ratio compatibility ensures

Its close ratio compatibility ensures precise gear selection across challenging terrain

75" /480 g

0 including E locking and Apple Find My

Bearing type: Bushing

SHIMANO ULTEGRA SM-BBR60 ITA HOLLOWTECH II BOTTOM BRACKET electric_hardtail Its close ratio compatibility ensuresSHIMANO BB R60 bottom bracket cups engineered for Ultegra Hollowtech II cranksets (FC 6800). Features Italian thread (M36 x 24T) compatibility for traditional frame designs. The HollowTech II technology delivers a wider bearing platform and larger axle diameter, maximising stiffness and pedalling efficiency. Sealed bearing design minimises interface points for smooth, durable performance. Installation requires TLFC37 or TLFC25 tool with TLFC36