There is friction between the front derailleur of the bicycle and the chain. How should I adjust it?

Adjust the front derailleur. There are two screws on the front derailleur. One is marked “H” and the other is marked “L”. If the large chainring is not ground but the middle chainring is, you can fine-tune L so that The front derailleur is closer to the calibration chainring.

Precision roller chain

The function of the bicycle transmission system is to change the speed of the vehicle by changing the cooperation between the chain and the gear plates of different front and rear sizes. The size of the front chainring and the size of the rear chainring determine how hard the bicycle pedals are turned.

The larger the front chainring and the smaller the rear chainring, the more laborious it will be when pedaling. The smaller the front chainring and the larger the rear chainring, the easier you feel when pedaling. According to the abilities of different riders, the speed of the bicycle can be adjusted by adjusting the size of the front and rear chainrings, or to cope with different road sections and road conditions.

Extended information:

When the pedal is stopped, the chain and the jacket do not rotate, but the rear wheel still drives the core and the jack to rotate forward under the action of inertia. At this time, the internal teeth of the flywheel slide relative to each other, thus compressing the core to the core. In the slot of the child, Qianjin compressed Qianjin spring again. When the tip of the jack tooth slides to the top of the inner tooth of the flywheel, the jack spring is compressed the most. If it slides forward a little, the jack is bounced by the jack spring onto the tooth root, making a “click” sound.

The core rotates faster, and the weight quickly slides on the internal teeth of each flywheel, making a “click-click” sound. When the pedal is stepped on in the opposite direction, the coat will rotate in the opposite direction, which will accelerate the sliding of the jack and make the “click-click” sound more rapid. Multi-stage flywheel is an important component in bicycle transmission.


Post time: Nov-24-2023