SHIMANO DURA ACE BB-R9100 BOTTOM BRACKET
The Shimano BB-R9100 bottom bracket was specially designed for Dura Ace 11-speed cranks. It has small ball bearings to minimize weight and works with Hollowtech II technology for more stability and rotation efficiency. BB-R9100 is available in a version for BSA and for ITA threads.
FEATURES:
- Small ball bearings for low weight
- Anodized cups
- Recommended for Dura Ace FC-R9100, FC-R9100-P, FC-9000
SPECIFICATIONS:
APPLICATION: ROAD, TRIATHLON & TIME TRIAL
SERIES: DURA ACE R9100
TYPE: ITALIAN
HOUSING WIDTH: 70MM
AXLE DIAMETER: 24MM (HOLLOWTECH II)
BEARINGS: STEEL
BOTTOM BRACKET SHELL MATERIAL: ALUMINUM
