Shimano SM-BB94-41A Hollowtech II Press Fit 89.5/92mm Bottom Bracket

The Shimano SM-BB94-41A press fit bottom bracket is designed to fit 24 mm Hollowtech II cranks of the XTR series into MTB bottom brackets with a width of 89 or 92 mm and a diameter of 41 mm. Thanks to the small ball bearings it is almost 20 grams lighter than its predecessor. The smooth-running and durable seals are also quite impressive.


Application: Cross Country, All Mountain, Enduro
Series: XTR
Type: PressFit BB92
Shell Diameter: 41 mm
Shell Width: 89.5 mm / 92 mm
Axle Diameter: 24 mm (Hollowtech II)

Technical Information:

Bearings: steel
Bottom Bracket Cup Material: synthetic resin
Bottom Bracket Centre Tube Material: synthetic resin


Recommended for:
- XTR FC-M980, FC-M985, FC-M9000, FC-M9020, FC-M9100, FC-M9120, FC-M9125, FC-M9130
- FC-MT900


- small ball bearings for low weight
- 18.5 g lighter than predecessor SM-BB91-41A
- smooth rotation
- improved seal for long durability: specially developed for MTB use


Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. 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 to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.

Manufacturer Number:



- 1 x Shimano SM-BB94-41A right bearing cup, with bearings
- 1 x Shimano SM-BB94-41A left bearing cup, with bearings
- 1 x Shimano bottom bracket sleeve
- 1 x 2.5 mm spacer


  • black/Pressfit: 58 g

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