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Rims

Rims

Bicycle Rims - For pleasure and performance
Tyre typeDiameterInternal rim widthRim typeDrillingBrake typeRim heightSpoke bed diameter

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Bike rims, whatever the use or type of bicycle, are central to a cyclist's performance, comfort and safety. Common questions about rims often concern materials (aluminum, steel, carbon), profile height, maximum weight capacity, the advantages of tubeless rims, the influence of rim width on handling, compatibility with different types of braking (disc or rim) and the impact of spokes on performance. Cyclists also frequently ask questions about the differences in ride quality between light and heavy rims, weather resistance and how to optimize their durability.
What are the advantages and disadvantages of aluminum rims compared with carbon?
 
Aluminum rims are renowned for their strength, corrosion resistance and lower cost. They offer an excellent compromise for most uses. Carbon rims, on the other hand, are generally lighter, offering better aerodynamics and rigidity, but can be more expensive and less durable in certain conditions.
How does rim profile height affect bike performance?
 
The height of the rim profile has a direct impact on the bike's aerodynamics, stiffness and stability. A high profile is more aerodynamic and favors straight-line speed but can be heavier and more sensitive to crosswinds. A low profile offers better handling and less weight and is generally preferred for hilly or technical terrain.
How important is rim compatibility with braking systems?
 
The compatibility of the rim with the braking system is crucial to ensure the safety of the cyclist. Rims designed for rim brakes have a specific braking surface, while those for disc brakes do not, therefore bike frames equipped with rim brakes must use rim-brake compatible rims. Using a rim that is not adapted to the braking system is extremely dangerous. 
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