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A gravel derailleur is specifically designed to meet the needs of gravel bikes, which are versatile bikes designed to ride on a variety of surfaces, including unpaved roads, dirt roads and trails. Here is a description of its function, its characteristics and the associated standards:

Function :

The derailleur on a gravel bike performs the same function as on any other bike equipped with gears. It allows you to change gears by moving the chain from one chainring to another at the front and from one sprocket to another at the rear. This allows the rider to adjust pedaling resistance based on terrain and speed.

Features :

1. Versatility:

Gravel derailleurs are designed to provide a wide gear range to accommodate different types of terrain, whether road, gravel or trail.

2. Reliability:

They are generally designed to be sturdy and reliable, as gravel bikes can be subjected to varying conditions and different loads.

3. Compatibility:

Gravel derailleurs are designed to be compatible with drivetrain systems commonly used on these types of bikes, including multi-speed cassettes in the rear and multiple chainrings in the front.

4. Protection:

Some gravel derailleurs have additional protection features to prevent damage from debris and impact, which is especially important when riding on unpaved surfaces.


Derailleurs on gravel bikes generally follow bicycle industry standards for compatibility with cassettes, chainrings, chains and shifters. However, there may be variations depending on the manufacturer and specific model of the derailleur.

In summary, gravel derailleurs are designed to provide great versatility, reliability and additional protection to meet the specific needs of riders who explore a variety of terrain with their gravel bikes.