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Bottom Brackets

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Bottom Brackets

Bottom Brackets for Road Bikes: Performance and Reliability

In the cycling components category, the bottom bracket is an essential element for efficient power transmission. It provides the connection between your road bike frame and the pedals, allowing for smooth rotation of the crankset. Choosing the right bottom bracket is crucial to maximize your performance and the longevity of your bike. Discover our selection of bottom brackets adapted to your needs:

Types of bottom brackets

  • Adapter: Used to adapt bottom brackets to a frame with specific dimensions, ensuring perfect compatibility with your bike.
  • BB30 (42mm): A modern standard with a 30mm axle, offering maximum stiffness and reduced weight for road bikes.
  • BB86 / BB92 (41mm): Designed for frames with a 41mm shell diameter, ideal for PressFit installation offering increased stiffness and performance.
  • BSC / BSA (34.8mm): The classic threaded bottom bracket, very popular for traditional road bikes, offering simple and reliable installation.
  • PF30 (46mm): A PressFit system with a diameter of 46mm, improving rigidity while reducing weight for optimal performance.
  • T47 (47mm): A newer standard with a 47mm diameter, designed to provide better rigidity and easier assembly while optimizing the overall performance of the crankset.

Essential features for choosing your case

Choosing a bottom bracket depends on several criteria, including compatibility with your frame and your riding style. Here are the main elements to consider:

  • Frame Compatibility: Check that the bottom bracket is suitable for your frame standard (BB30, BB86, BSA, etc.) to ensure correct fitment.
  • Material: Choose an aluminum housing for lightness, or stainless steel for maximum durability, depending on your riding preferences.
  • Axle Type: The choice of axle type (from 30mm to 47mm) influences the stiffness and smoothness of pedaling. Select the housing based on your performance priorities.

Why choose a good bottom bracket?

A quality bottom bracket is essential for ensuring smooth pedaling and increased longevity of your bike. Here are the benefits of a high-performance bottom bracket:

  • Transmission optimization: A well-chosen box allows you to maximize the power transmitted to your pedals, which improves your performance, particularly when climbing or accelerating.
  • Increased stiffness and responsiveness: Modern bottom brackets such as BB30 or PF30 offer exceptional stiffness, reducing energy loss while you pedal.
  • Durability and Reliability: A quality bottom bracket ensures long life, even under demanding riding conditions, while reducing the risk of premature failure.

To make the best choice, it's important to understand the specifications of your bike and frame. Explore our wide selection of bottom brackets, suitable for all types of road bikes and the needs of every cyclist.


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