Ultegra BB72-41B Press-Fit Bottom Bracket

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Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. I t's available in English, Italian, or Press Fit models. New seal construction for smoother rotation BB Shell Width (mm): 68 mm BB/Frame Interface: BB86 Bottom Bracket Shell I.D.: 41 Defined Color: Black Weight: 69 g Spindle Interface Type: Shimano Hollowtech II Show more