SHIMANO ULTEGRA SM-BBR60 ITA HOLLOWTECH II BOTTOM BRACKET electric_hardtail Ready for exploration and adventure

Ready for exploration and adventure

75" /480 g

10- to 50-tooth cassette offers an optimal 500-percent gear range at a considerably lighter weight than 2x systems

Expansion View Technology Expansion View Technology (EXV)

SHIMANO ULTEGRA SM-BBR60 ITA HOLLOWTECH II BOTTOM BRACKET electric_hardtail Ready for exploration and adventureSHIMANO 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