Tangent Bottom Bracket BB
Tangent Bottom Bracket BB outboard type.
* Smooth rolling precision Japanese bearings. And they know how to make one heck of a fast bearing!!
* Our custom designed alloy dust caps sized perfectly to eliminate the need for plastic or alloy spacers to fit Shimano DXR cranks and many others.
* Compatible with all 24mm race cranks designed to be used with external BB’s.