Profile Racing 19mm American Bottom Bracket
• For use on bicycles with American BB shells with 19mm (3/4") sealed spindles.
• Formerly known as the American Bottom Bracket with Hop Up Kit.
• Gives your Profile crankset that "finished" look. Includes cups, sealed bearings, tube spacer, cone washers, and flat washers.
• Black, Polished, Red, Blue, Gold, Purple, or Green cups.