Shimano DURA-ACE BB-R9100/SM-BB9100 Threaded Bottom Bracket 68/70 mm shell width

Shimano DURA-ACE BB-R9100/SM-BB9100 Threaded Bottom Bracket 68/70 mm shell width

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Shimano DURA-ACE SM-BB9100 Threaded Bottom Bracket 68/70 mm shell width

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.

MODEL NO                      : BB-R9100=SM-BB9100
SERIES                             : DURA-ACE R9100 Series
Average weight               : 65
HOLLOWTECH II bottom bracket Threaded bottom bracket type  : Yes
Small ball bearing           : Yes
Threaded bottom bracket shell width (mm) 68     : Yes
Threaded bottom bracket shell width (mm)70      : Yes

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R9100 Series

System engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That's how it achieves supremacy.

System Supremacy

System engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That's how it achieves supremacy.

New designed crank arm for optimum power transfer
Precise & easy front derailleur set with lighter and intuitive shifting operation
SHIMANO SHADOW RD construction for stable shifting performance
Optimally balanced hydraulic brake system for racing with improved heat dissipation of ICE TECHNOLOGIES FREEZA


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