External BSA 30/386 Bottom Bracket with Ceramic Bearings for 30mm cranksets

Presenting our beautiful BSA 30/386 External Bottom Brackets with World Champion original ACER Racing Ceramic ball bearings for those of you who need a BSA bottom bracket but are using cranks with a 30mm diameter instead of a 24mm diameter.

You already know of the extreme advantages of ACER Racing ceramic bearings. The lower friction and lower rolling resistance of our ceramic ball bearings result in drastic reductions is drag which translate to the equivalent of considerable static weight deductions on your bicycle allowing you to achieve higher speeds with less effort. Our External Bottom Brackets are made from forged and CNC machined alloy cups.  English threads 1.37"x24TPI for 68mm shell.  Includes tool.