Ultegra BB72-41B Press-Fit Bottom Bracket

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. It'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