Shimano Dura-ace SM-BB92 Bottom Bracket Press-fit 86.5MM 41MM Diameter

Shimano SM-BB92-41B is a bottom bracket for press fit mounting of Hollowtech II cranks into a road frame with 86.5 mm bottom bracket shell. Hollowtech II means an axle diameter of 24 mm, which benefits stiffness and load capacity. Use this bottom bracket, which is characterised by its weight-saving small ball bearings, with a Dura-Ace 11-speed or 12-speed crank for an ideal combination.


SPECIFICATIONS

Application: Road, Triathlon & Time Trial
Type: Press fit BB86
Shell Diameter: 41 mm
Shell Width: 86.5 mm
Axle Diameter: 24 mm (Hollowtech II)


TECHNICAL INFORMATION

Bearings: Steel
Bottom Bracket Cup Material: Synthetic resin


COMPATIBILITY

Dura-Ace FC-9000, FC-R9100, FC-R9100-P, FC-R9200, FC-R9200-P


FEATURES

Small ball bearings for low weight


TECHNOLOGY

Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.