Wheels Manufacturing BSA 30 Bottom Bracket – English (BSA) Frame Interface,
Allows for the use of 30mm spindle crankset with English (BSA) threaded bottom bracket shells. Bottom Bracket Shell I.D. 1.37. We are out East at 3063 Columbia Ave. – Lancaster PA, 17603 & out West at 3225 Grande Vista Dr. – Newbury Park, CA 91320 & 165 Design Place, #105 – Sparks, NV, 89441.