Shimano SM-BB72-41B Ultegra Bottom Bracket – Press Fit, Hollowtech II

Enhance your road bike’s drivetrain efficiency with the Shimano SM-BB72-41B Ultegra bottom bracket. Designed for press-fit frames with an 86.5 mm shell width, this Hollowtech II bottom bracket is compatible with Ultegra and 105 11-speed cranks, offering lightweight performance and smooth pedaling.

Key Features:

• Hollowtech II Design: 24 mm axle diameter for optimal stiffness and rotational efficiency.

• Press-Fit Installation: Fits BB86 road and city frames.

• Small Ball Bearings: Reduces weight while maintaining durability.

• Durable Construction: Sealed bearings keep dirt and moisture out for maintenance-free use.

• Compatibility: Recommended for Shimano Ultegra and 105 11-speed cranks.

Specifications:

• Shell Diameter: 41 mm

• Shell Width: 86.5 mm

• Axle Diameter: 24 mm (Hollowtech II)

• Application: Road, City

• Size: Standard