
Too Many Bottom Brackets? Here's How to Choose the Right One
We've outlined five key factors to consider when selecting the perfect bottom bracket for your bike.
Last updated 4 days ago. Automatically generated content.


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Axis diameter refers to the thickness of the spindle within a bottom bracket, which affects compatibility and strength. Choosing the right axis diameter is crucial for ensuring smooth pedaling and optimal power transfer, impacting overall cycling performance.
Popular options
Up to 24 mm
Suitable for lighter bikes with less aggressive riding styles.
Offers adequate strength and compatibility for casual cycling, making it an economical choice.
Bestseller
25 - 29 mm
Balances between lightweight design and strength, ideal for versatile cycling.
Provides enhanced durability and power transfer, suitable for regular riders seeking efficiency.
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30 - 35 mm
Designed for heavy-duty bikes and aggressive cycling styles.
Ensures maximum power transfer and durability, recommended for competitive cyclists and challenging terrains.
Bestseller
Axis compatibility refers to the diameter of the crank spindle that fits into the bottom bracket, which is crucial for ensuring proper installation and performance of the drivetrain. Selecting the appropriate axis compatibility impacts the efficiency of power transfer and the overall riding experience, as it influences the stiffness and stability of the bike.
Popular options (you can select more than one)
30mm
Typical price
56,– to 220,–Features a larger diameter spindle, providing increased stiffness and improved power transfer.
Ideal for competitive cyclists seeking enhanced performance and efficiency during rides.
Bestseller
24 mm
Typical price
35,– to 200,–Standard size for many bikes, offering a balance between weight and performance.
Suitable for recreational riders looking for reliable and consistent performance without excessive weight.
Bestseller
Square-taper
Typical price
17,– to 26,–Utilizes a tapered spindle for a secure fit, common in older bike models.
Cost-effective option for casual cyclists or those maintaining vintage bicycles.
Bestseller
DUB (28.8 mm)
Typical price
44,– to 310,–Combines the advantages of larger and smaller diameter spindles for optimized performance.
Designed for riders who desire a lightweight yet durable option, balancing stiffness and efficiency.
Bestseller
Hollowtech II
Typical price
28,– to 210,–Incorporates a hollow spindle design for reduced weight while maintaining strength.
Favored by cyclists aiming for lightweight setups without compromising on durability and performance.
Bestseller
Box width specifies the distance between the two sides of the bottom bracket shell, determining compatibility with different bicycle frames. Choosing the correct box width ensures proper fit and efficient power transfer, crucial for cycling performance.
Popular options (you can select more than one)
68 mm
Typical price
23,– to 150,–Standard width for road bikes and some mountain bikes, providing a compact fit.
Ideal for riders seeking a lightweight setup and efficient energy transfer on smoother terrains.
Bestseller
73 mm
Typical price
40,– to 150,–Commonly found on mountain bikes, offering a wider stance for stability.
Best for off-road cycling, providing enhanced support and durability on uneven trails.
Bestseller
86.5 mm
Typical price
40,– to 240,–Designed for larger road bike frames, allowing increased stiffness.
Suitable for competitive cyclists who prioritize rigidity and speed on paved surfaces.
Bestseller
92 mm
Typical price
41,– to 150,–Extra wide option for specialized mountain and fat bikes.
Perfect for extreme conditions, offering maximum support and strength for rugged terrains.
Bestseller
70 mm
Typical price
31,– to 98,–Used in specific bike models for a slightly wider road bike setup.
For cyclists needing a bit more stability without compromising road performance.
Bestseller
Frame compatibility determines how well a bottom bracket fits into a bicycle frame, impacting installation ease and performance. Choosing the correct type ensures smooth operation and longevity, preventing issues such as creaking or premature wear.
Popular options (you can select more than one)
BSA
Typical price
19,– to 89,–Standard threading system, widely used in many bikes.
Offers reliable performance and easy installation, ideal for general-purpose cycling.
Bestseller
BB30
Typical price
29,– to 200,–Press-fit system with larger bearings, reducing weight.
Provides enhanced stiffness and durability, suitable for high-performance cycling.
Bestseller
T47
Typical price
67,– to 220,–Combines threading with larger diameter for increased rigidity.
Ensures robust performance and is excellent for off-road and demanding cycling conditions.
Bestseller

Enduro Bearings XD-15 Pro Ceramic bottom bracket, T47, 29mm, DUB, black (BKC-0799)
PF30
Typical price
49,– to 210,–Press-fit design similar to BB30, but with easier installation.
Delivers a lightweight setup, optimal for road bikes and speed enthusiasts.
Bestseller
BB86
Typical price
35,– to 150,–Press-fit system with a wider shell, providing stability.
Ideal for road bikes, offering a balance of stiffness and comfort for long rides.
Bestseller
The choice of brand in bottom brackets can influence durability, compatibility, and performance, making it a critical factor for cyclists. Brands like Shimano and Sram are renowned for their reliable and high-performing products, offering options for both casual riders and professional athletes.
Popular brands (you can select more than one)
Shimano
Known for its precise engineering and broad compatibility across various bike models.
Offers durable and smooth-performing bottom brackets, ideal for both amateurs and professionals.
Bestseller
Sram
Specializes in innovative design and technology for high-performance cycling.
Provides lightweight and efficient bottom brackets, perfect for competitive racing or advanced biking.
Bestseller
Truvativ
Focuses on robust construction and reliability for mountain biking.
Delivers strong and resilient bottom brackets, suitable for rough terrains and adventurous trails.
Bestseller
Race Face
Renowned for its emphasis on strength and durability in rugged environments.
Offers bottom brackets that excel in off-road conditions, great for mountain bikers seeking toughness.
Bestseller
Rotor Bike Components
Known for precision and innovation in enhancing cycling performance.
Provides high-quality bottom brackets that improve efficiency, favored by performance-focused cyclists.
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