American Bottom Bracket

Replace your unsealed American BB with a sealed one

The American Bottom Bracket by Stolen comes with American sized bearing-cups, meaning it's compatible with frames with a bottom bracket shell diameter of 51 mm. It's meant as an upgrade guide from your old unsealed American Bottom Bracket.

Technical features:

• CNC'd from light, yet strong, 6061 alloy
• Cup-design with fully sealed bearings
• American-sized shell
• Spacers included for a snug fit