Description
Shimano BB-R9100 Dura-Ace Bottom Bracket
With an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA-ACE bottom bracket is offered in both pressfit and threaded options.
BENEFIT
- Bottom bracket with small ball bearings for lightweight
- Advanced seal construction for smoother rotation
HOLLOWTECH II
Providing the best balance of stiffness, strength, weight, and rotating performance
The concept of HOLLOWTECH II technology is focused on producing a superior crankset that will maximize a rider’s power transfer. The rigidity of the crankset ensures pedaling efficiency, while its weight a key element of the crankset you want to be light aids in cycling longer distances over which the rider needs to pedal more.
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