Shimano Bottom Bracket Press Fit MTB 7141A
What Is It?
The Shimano 7141A Press-Fit MTB Bottom Bracket is a press-fit bearing system designed to connect a Shimano Hollowtech II 24mm crankset to a bicycle frame that uses a BB92 / 41mm press-fit bottom bracket shell.
Instead of threading into the frame, it is pressed directly into the frame shell, allowing for a lighter, stiffer frame design.
It is commonly used on modern mountain bikes (XC, trail, and marathon builds).
Key Features
- Designed for Shimano Hollowtech II (24mm spindle) cranksets
- Press-fit installation (no threads in the frame)
- Compatible with BB92 / 41mm MTB press-fit shells
- Sealed bearing system for durability
- Lightweight resin cup construction
- Improved frame stiffness and pedalling efficiency
- Better sealing against mud, water, and dust
- Includes left and right bearing cups and sleeve spacer
- Suitable for MTB and cross-country use
Specifications
| Specification |
Details |
| Brand |
Shimano |
| Model |
7141A Press-Fit MTB |
| Type |
Press-fit bottom bracket |
| System |
Hollowtech II |
| Axle Compatibility |
24mm crank spindle |
| Frame Standard |
BB92 (41mm shell) |
| Shell Width |
89.5mm – 92mm |
| Bearing Type |
Sealed cartridge bearings |
| Material |
Reinforced resin cups |
| Use |
MTB, XC, Trail, Marathon |
Who Is It Suitable For?
- Mountain bikers (XC, trail, marathon)
- Riders using Shimano Hollowtech II cranksets
- Bikes with BB92 / press-fit MTB frames
- Riders replacing worn or noisy bottom brackets
- Competitive and recreational MTB riders
- Bike builders using modern lightweight frames
Who Should Use It?
- Riders with press-fit MTB frames (BB92 standard)
- Cyclists using Shimano Deore / SLX / XT Hollowtech II cranks
- MTB riders wanting lightweight and efficient pedalling
- Riders experiencing creaking or worn press-fit bearings
- Mechanics servicing modern MTB drivetrains
- Performance riders prioritising stiffness and efficiency
