BSA External Bottom Bracket - Shimano Road

Description |

BSA Bottom Bracket

• Includes replacement dust covers and seals
• CNC-machined aluminum shell for precise bearing alignment and frame fit
• ABEC-3 sealed bearings
• Grade 10 chromium steel balls, 52100 High Carbon Chromium Alloy Races
• Replaceable Enduro bearings
• Made in the USA
• External English (BSA) threaded road bottom bracket for 68mm shells