Shimano SM-BB92-41B Bottom Bracket Dura-Ace Press-Fit 86.5mm Air Blower Whether you're a seasoned cyclist

Whether you're a seasoned cyclist or a bike enthusiast

Whether it's chains

smooth rolling efficiency

and inner tube protected from dust and water

or even a backpack mount

Shimano SM-BB92-41B Bottom Bracket Dura-Ace Press-Fit 86.5mm Air Blower Whether you're a seasoned cyclistMade to press right into your bike this Shimano BB92 bottom bracket will mate your Shimano HollowTech crankset to any frame equipped with a BB92 bottom bracket shell. It comes with two steel cartridge bearings pressed into composite cups. The cups increase the outside diameter of the assembly to 41mm to match the I. D. of the frames bottom bracket shell. Being part of the new press fit standard there is also a 1. 75mm thick outer lip that provides a