Advanced seal construction ensures smooth rotation and reduces maintenance needs
Small ball bearings minimize weight for improved bike performance
Threaded design allows for easy installation and compatibility with various cranksets
Hollowtech II construction reduces overall weight without sacrificing strength
Summarized by Shop
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.
Specifications Bottom bracket with small ball bearings for lightweight Advanced seal construction for smoother rotation MODEL NO: BB-R9100 HOLLOWTECH II BB Ty