The Wheels Manufacturing BSA 30 bottom bracket threaded to 30mm is their solution to running a 30mm spindle crankset in a BSA (English) threaded frame. This bottom bracket features high quality aluminum cups and fully serviceable bearings.

• Allows for the use of 30mm spindle crankset with English (BSA) threaded bottom bracket shells
• For use with 30mm diameter cranks with an overall spindle length of at least 104mm when used in a 68mm wide BB shell
• Will not work with standard BB30 cranksets, please measure your BB30 crank spindle length
• Compatible with frames that have 68-73mm English bottom bracket shells
• Enduro ABEC-3 sealed bearings are replaceable
• Grade 10 chromium steel balls, 52100 High Carbon Chromium Alloy Races provide smooth crank rotation
• Machined aluminum cups with durable anodized finish