Product Details

White Industries external BSA style bottom brackets are made here in our shop and feature Enduro stainless steel angular contact bearings or optional Enduro XD-15 ceramic-hybrid radial bearings. We offer them with three different bearing sizes to help you fit your favorite crank to your favorite bike.

BSA bottom bracket shells and cups are named after the Birmingham Small Arms Company which created the thread standard used in this system. Its also referred to as British or English style and is the most common type of system found on modern bicycles. The external designation refers to the fact that the bearings will sit outboard of your frames bottom bracket shell as opposed to being tucked inside the shell as you would find on some styles of BSA bottom brackets.