Shimano SMBB7141B Pressfit Bottom Bracket 41 x 86.5mm Bottom Bracket

Shimano SMBB7141B Pressfit Bottom Bracket 41 x 86.5mm Bottom Bracket

To best meet customer needs, SHIMANO has developed the Press-Fit bottom bracket, which keeps us focused on our ultimate goal: total pedaling performance.
The bottom bracket remains firmly supported by the bearings, which are spaced further apart using HOLLOWTECH II technologies, resulting in highly efficient power transfer.

Specifications

Fixation type: Pressfit BB86

Bottom bracket diameter: 41mm

Bottom bracket width: 86.5 mm

Shaft diameter: 24mm (Hollowtech II)

Bearings: Steel

Inner bearing cup material: Artificial resin

Compatibility:

- Ultegra FC-6700, FC-6700 G, FC-6750, FC-6750 G, FC-6703, FC-6703 G

- 105 FC-5700, FC-5750, FC-5703

- Tiagra FC-4600, FC-4650, FC-4603

- Sora FC-3550, FC-3503

- FC-CX50

- FC-R603, FC-R563, FC-R460, FC-R350

Technologies

Hollowtech II

It is a crank inner bearing system designed to achieve an ideal ratio of rigidity, weight and rotational efficiency. It is based on an integration of the lower bearing and the right crank arm and works with an axle or with a 24 mm diameter inner bearing, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. In addition, high-quality precision gaskets are added to ensure long service life.

Includes:

1 x Right cup with Shimano SM-BB71-41B bearing

1 x Left cup with Shimano SM-BB71-41B bearing

1 x Shimano inner bearing bushing

REFERENCE: ISMBB7141B