Shimano Press Bottom Bracket SM-BB7141A – Smooth Press-Fit Bearing for Modern Bike Frames
The Shimano SM-BB7141A is a press-fit bottom bracket for bikes with a press-fit bottom bracket shell. It creates a direct and stiff connection between the crankset and frame for efficient power transfer.
Press-fit design: Easy installation without threading, optimized for BB86/92 standard frames
Light and robust: At only 70 g, it reduces the overall weight of the drivetrain
Precision bearing: Sealed bearing unit for consistently smooth rotation
24 months manufacturer warranty provide long-term reliability
What sets the Shimano SM-BB7141A apart
Thanks to the press-fit construction, the bearing sits without play in the frame and transmits pedal power without loss. The sealing protects against dirt and moisture, extending service life.
Ideal for...
This bottom bracket is suitable for mountain bikes, road bikes, and city bikes with press-fit bottom bracket shells (BB86/92). It is the right choice for demanding riders who value a low-maintenance and efficient drivetrain.
How to install the press-fit bottom bracket
Installation is done using a special press-fit tool. The bearing is pressed into the frame shell – no threading required. Ensure correct alignment of the bearing unit. Removal is possible with a bearing extraction tool.
Shimano is a Japanese manufacturer of bicycle components and fishing tackle. The brand is known for high-precision derailleurs, brakes, wheels, and drivetrain parts, valued by both competitive and recreational cyclists worldwide.
A press-fit bottom bracket is pressed directly into the frame's bottom bracket shell without threads. It provides a stiff and play-free connection between the crankset and the frame.
It fits frames with the press-fit standard BB86/92 – meaning a shell width of 89.5 mm and an axle diameter of 92 mm. It replaces older models like the BB71.
The bottom bracket is designed for Shimano Hollowtech II cranks with a 24 mm axle.
The package includes the bearing unit and dust covers. Installation tools are not included.
Shimano offers a 24-month manufacturer warranty on the SM-BB7141A, covering material and workmanship defects.
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