SHIMANO DUR-ACE BB-R9100 central movement

The central movement Shimano lasts ACE BB-R9100 represents L'Evolution required by professionals and enthusiasts who try to overcome already high performance standards.

Each component of the Dura-Ace R9100 is designed to integrate perfectly with LThe entire system, embodies the Shimano philosophy of system efficiency. This translates into an overall superiority that goes beyond the simple sum of the individual parts.

The shells and bearings lasts ACE BB-R9100, made of steel and aluminum, are optimized for L'Coupling with Shimano Pulitting Dura Ace FC-R9100 Hollowtech II.