XTR BB93 Hollowtech II BSA English Bottom Bracket

The Shimano BB93 is a high-performance bottom bracket designed for all mountain Hollowtech II cranks. This English-threaded component features a revised, smaller profile to reduce weight while improving rotation smoothness for more efficient pedaling.

Advanced Seal Construction: Engineered with a new seal design that ensures smoother rotation and increased durability against the elements on the trail.

Lightweight Design: Features a reduced external size to shed unnecessary weight without compromising the strength required for mountain bike applications.

Universal Frame Fit: Compatible with 68mm and 73mm British-threaded (BSA) shells and includes three 2.5mm spacers to ensure a perfect fit on varying frame widths.

Technical Compatibility: Built for standard 24mm Hollowtech spindle diameters and utilizes high-quality steel bearings for long-lasting performance.