Extremely reliable and efficient bottom brackets with coated ceramic bearings, tight variances and industry-leading durability This bottom bracket fits a Sram GXP crank on a classic BSA threaded road frame Reduced friction and better protection from nature`s elements Long lasting durability and extreme performance 68/73mm ENG Sram GXP 24/22mm Alloy BlackUPC/EAN/GTIN: 735201953236