Shimano BB-R9100 Threaded Bottom Bracket Variant:English Threaded Low rolling resistance for race-level

Low rolling resistance for race-level efficiency

Low profile Clamp

Perfect size for workshop/home mechanic use

Disc pad spreader

Trace DayBright

Shimano BB-R9100 Threaded Bottom Bracket Variant:English Threaded Low rolling resistance for race-levelWith 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. Specifications Bottom bracket with small ball bearings for lightweight Advanced seal construction for smoother rotation MODEL NO: BB R9100 HOLLOWTECH II BB Type: Threaded bottom bracket type Threaded BB Shell Width: 68mm, 70 mm Mfr Claimed Weight 65g