Shimano SM-BB72-41B Ultegra Bottom Bracket (Press Fit 86.5mm)

SHIMANO ULTEGRA - Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell width

Shimano SM-BB72-41B is a press fit bottom bracket recommended for Ultegra and 105 11-speed cranks. Small ball bearings help save on weight. This Hollowtech II bottom bracket also has a shaft diameter of 24 mm, which has proven to be optimal in terms of stiffness and rotational efficiency.

Key Features

• Application: Road, City

• Type: Press Fit BB86

• Shell Diameter: 41 mm

• Shell Width: 86.5 mm

• Axle Diameter: 24 mm (Hollowtech II)

• Bearing Design: Small ball bearings for weight reduction

• Compatibility: Ultegra and 105 11-speed cranks

• Performance: High stiffness and smooth rotation for efficient pedaling

Product Specifications

• Brand: Shimano Ultegra

• Model: SM-BB72-41B

• Technology: Hollowtech II

• Material: Aluminum alloy shell, steel spindle

• Weight: Lightweight design for performance cycling

• Frame Fit: BB86 press fit standard

• Intended Use: Road cycling, city commuting

Build Quality

• Durable Construction: Precision-machined shell and spindle ensure long-lasting use

• Corrosion Resistance: High-quality materials maintain performance in varied weather conditions

• Lightweight Design: Small ball bearings and optimized axle reduce overall weight without sacrificing strength

Why Choose This Product

• Reliable Performance: Delivers consistent power transfer with minimal friction

• Enhanced Efficiency: Hollowtech II 24 mm spindle ensures optimal stiffness and rotation

• Easy Compatibility: Works seamlessly with Ultegra and 105 11-speed cranks

• Durability: High-quality materials ensure long-term reliability

• Lightweight Design: Ideal for competitive and recreational cycling

In the Box

Shimano SM-BB72-41B Ultegra Bottom Bracket

Installation instructions

Protective packaging