SHIMANO DURA ACE BB-R9100 ITA HOLLOWTECH II BOTTOM BRACKET

The SHIMANO BB-R9100 DURA-ACE HOLLOWTECH II bottom bracket delivers precision engineering for the FC-R9100 crankset.

Featuring M36 x 24T Italian thread cups, this component combines lightweight construction with exceptional stiffness for competitive performance. The HollowTech II design ensures smooth, efficient power transfer with minimal friction. Compatible with frames using Italian-threaded bottom bracket shells. Requires TLFC34 or TLFC24 tool with TLFC36 adaptor for installation and removal. Built to Dura-Ace standards for reliability and durability.

Specification

• Use: Road
• Gruppe: Dura Ace
• Model: BB-R9100
• BB-Type: HOLLOWTECH II
• Threaded: ITA
• Threaded BB shell width: 70mm
• Shell diameter: ITA (M36)

Compatibility

• Dura Ace FC-R9100

Material

• Aluminium

Weight

• 65g

Contents

• Shimano Dura Ace Hollowtech II Bottom Bracket Cups BB-R9100 ITA
• Shimano Tool TL-FC24

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Weights are based off pre-production products at time of publication. Weights may vary in final production.