Shimano spared no detail when redesigning their Dura-Ace group, and the BB86/BB92 compatible press-fit bottom bracket got the star treatment as well. Compared to previous versions, it's both lighter and more efficient, while remaining an industry leader in weather resistance and durability.

Slightly smaller bearings allow for more efficient rolling while furthering weight reduction, and updated seals drop resistance by a claimed 50%, reducing effort required throughout the pedal stroke with no sacrifice in weather resistance.

The Shimano Dura-Ace BB92-41B Press Fit Bottom Bracket is compatible with BB86 / BB92 bottom bracket shells with 86.5 mm.