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An electric mountain bike derailleur is an essential component of this type of bicycle which integrates an electrical assistance system. Here is a description of its function, its characteristics and the associated standards:

Function :

The derailleur on an electric mountain bike performs the same function as on a classic mountain bike equipped with gears. It allows you to change gears by moving the chain from one sprocket to the other at the rear. This allows the rider to adjust pedaling resistance based on terrain and speed, even with electric assistance.

Features :

1. Reliability:

Electric mountain bike derailleurs are designed to provide optimal reliability, as any malfunction could affect the operation of the electric assistance system.

2. Adaptability:

They must be able to perform efficiently on a wide range of terrain, as electric mountain bikes are used for various types of rides and trails.

3. Compatibility with electric motors:

Derailleurs are designed to be compatible with electric drive systems found on electric mountain bikes, which requires efficient integration with the motor and electronic management system.

4. Resistance:

As with traditional mountain bikes, electric mountain bike derailleurs must be durable enough to withstand the shocks and stresses encountered on the trails, while still being able to support the added weight of the electrical components.

Standards:

Electric mountain bike derailleurs generally follow mountain bike industry standards for compatibility with cassettes, chains and shifters. However, they can also be designed to be specifically compatible with certain electric drive systems or with cassettes suitable for electric mountain bikes.

In summary, e-MTB derailleurs are designed to provide reliability, adaptability, and compatibility with electric drive systems, while maintaining the performance and ruggedness needed for trail use.