Specifications:

Application: Road, City
Type: Press Fit BB86
Shell Diameter: 41 mm
Shell Width: 86.5 mm
Axle Diameter: 24 mm (Hollowtech II)

Technical Information:

Bearings: Steel
Bottom Bracket Cup Material: synthetic resin

Compatibility:

Recommended for:
- Ultegra FC-R8000, FC-6800
- 105 FC-R7000, FC-5800
- Metrea FC-U5000
- FC-RS500

Features:

- small ball bearings for low weight

Technology:

Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal stiffness, weight, and rotational efficiency ratio. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven optimal stability. In many cases, the bearing cups are on the outside so that the load is better distributed. In addition, high-quality precision seals ensure long service life.

Manufacturer Part Number:

I-SMBB7241B

Contents:

- 1 x Shimano SM-BB72-41Bright bearing cup, with bearings
- 1 x Shimano SM-BB72-41B left bearing cup, with bearings
- 1 x Shimano bottom bracket sleeve