7S /8S Bicycle Rear Derailleur

What impact does the appropriate shifting cable tension have on the Rear Derailleur?

The appropriateness of the shift cable tension has a profound and important impact on the rear derailleur. As a key component of the bicycle transmission system, the rear derailleur is responsible for adjusting the position of the chain on different flywheel gears to achieve the transmission function. The transmission cable is an important medium for controlling the movement of the rear derailleur. The appropriateness of its tension is directly related to the performance of the rear derailleur and riding comfort.
First of all, proper shifting cable tension can ensure that the rear derailleur moves accurately and quickly when shifting. When the shifting cable tension is moderate, the rear derailleur can quickly and accurately move to the corresponding gear according to the rider's shifting needs, maintaining the correct meshing relationship between the chain and the flywheel gear. This not only improves the smoothness and accuracy of shifting, but also avoids problems such as chain skipping or falling off due to poor shifting.
Second, proper shift cable tension helps reduce rear derailleur and chain wear. If the shift cable tension is too tight, the rear derailleur may experience excessive resistance during movement, resulting in increased friction between the chain and the pulley, thereby accelerating wear. On the other hand, if the tension of the shift cable is too loose, the rear derailleur may not be fully in place, causing the chain to slip or shake when shifting, which will also increase wear. Therefore, keeping the shift cable tension appropriate will help extend the life of your rear derailleur and chain.
In addition, proper transmission cable tension can also improve riding safety and comfort. During riding, if the transmission system fails or becomes unstable, it may cause the rider to lose control of the bicycle and increase the risk of an accident. Appropriate shifting cable tension can ensure that the rear derailleur remains stable and reliable during shifting, reducing riding risks. At the same time, the smooth shifting experience also allows riders to more easily cope with different road conditions and riding needs, improving the comfort and fun of riding.
Therefore, the appropriateness of the transmission line tension is crucial to the impact of Rear Derailleur. In order to ensure the normal operation of the rear derailleur and extend its service life, we should regularly check and adjust the shifting cable tension to ensure it is in optimal condition. At the same time, during riding, we should also pay attention to the accuracy and timeliness of shifting operations to avoid unnecessary damage to the rear derailleur.