GUB Ceramic Bearings Bicycle Bottom Bracket BB86 BB92 PF4124 41mm Pressfit 24mm Inner Diameter Fit for Shimano/SRAM GXP Crankset
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Specifications
- Brand Name
- NONE
- Origin
- Mainland China
- Material
- Aluminum alloy+PE
- Model Number
- PF4124
- Use
- Mountain Bikes
- Type
- Bicycle Bottom Brackets
Product Description
Specifications:
Brand:GUB
Name:Bicycle Bottom Bracket
Model Number:PF4124
Color:Black,Red
Material:Aluminum Alloy+PE,Ceramic Palin
Weight :About 90g(Weight does not include accessories)
Shell width:86.5mm-92mm
Applicable Axis:φ24-24mm/φ24-22mm
Press-in Diameter:41mm/41mm
Description:
1. Simplify bearing replacement, and eliminate creaking.
2. Sealing system is easy to maintain and lubricate Completely noiseless.
3. Prevent dust and moisture from entering the forest, with good water resistance.
4. Heat treated high strength aluminum alloy material process, light weight while the strength will not decline.
5. The aluminum alloy shaft bushing makes the crank power transmission more direct, without plastic elasticity causing power loss and bearing damage, and has better rigidity.
Pros & Cons
Pros
- Ceramic bearing design reduces friction for more efficient pedaling and longer service life
- Aluminum alloy and PE construction offers durable corrosion-resistant performance
- Wide fit range for 86.5mm-92mm shell widths, compatible with many modern mountain bike frames
- Simple press-fit installation requires no specialized professional tools
Cons
- Only compatible with 24mm inner diameter axles and Shimano/SRAM GXP crankset systems
- No mounting hardware or installation instructions included, requiring separate purchases or professional setup
- Press-fit design requires careful alignment during installation to avoid creaking or premature wear
- Higher cost compared to standard steel bearing bottom brackets, making it less budget-friendly for casual riders
Common Questions
What materials are used in this GUB bicycle bottom bracket?
The housing is made from aluminum alloy and PE, with high-performance ceramic bearings for reduced friction and long lifespan.
What are the exact size measurements for this bottom bracket?
It has a 41mm press-in diameter, fits bike shell widths between 86.5mm and 92mm, and is compatible with 24mm inner diameter bicycle axles.
What crankset systems and bike types does this bottom bracket work with?
It is designed for mountain bikes, and fits Shimano and SRAM GXP crankset systems with press-fit installation.
How does this bottom bracket improve bicycle performance?
The ceramic bearings reduce pedaling friction for more efficient power transfer, smoother rides, and longer service life than standard steel bearing bottom brackets.
Where is this bottom bracket shipped from?
This product ships from Mainland China, with standard delivery times for bicycle parts sourced from regional warehouses there.
Product information last updated on March 13, 2026