Bicycles are equipped with gear selection mechanisms. With their help, you can change the frequency of rotation of the pedals, and the force on them begins to effectively distribute energy. In order to be able to change gears on the go, various types of switches are provided in the bike. In this article, we’ll talk about setting up one of them.
In order for the front derailleur to be set up correctly, you need to have a good eye and patience. At that moment, when the force is applied to the pedal, it will be transmitted from the top of the chain to the rear sprockets. It is not always possible to count on the uninterrupted operation of the switch at the moment of active movement of the pedal, even when the rear shift works flawlessly.
Setting the front derailleur is the most difficult thing. It will depend on the attachment to the frame itself. This must be done correctly and only then start adjusting the stops. In this case, the height and angle should be taken into account.
When adjusting the front derailleur, you must accurately determine the angle. This must be done by looking at the frame from top to bottom. Unfortunately, with modern switching mechanisms it is not always easy to correctly determine which position is correct. At the moment of rotation of the back of the frame, it must necessarily move away from the frame.
Setting the front gearshift should take place on a small asterisk in the system. This will prevent the chain from dropping from a large star if fitting is performed on it so that the connecting rod does not touch the frame. The result will be a good adjustment of the front derailleur.
The height of the front derailleur is very important for the shift quality. It must be remembered that manufacturers recommend making the distance between the large star and the outer part of the frame 2 mm. The lower this mechanism is omitted, the better the switching that does not require additional adjustment will become.
Setting the front derailleur allows you to correct any discrepancies. Therefore, it is necessary to ensure that the curvature of the frame coincides with the curvature of a large star, and if it is less than the switch is calculated, this gives a normal switch. Therefore, we can assume that the front derailleur is configured correctly. However, adjustment may be required when the back of the frame is higher.
To do this, it is necessary to achieve the exact coincidence of the curvature of the frame and the sprocket, to which it is necessary to put the switch very close, providing reliable control of the circuit. Thus, the limiter will not give him low gears and eliminates the reset circuit with a small asterisk system.
The setting of the front derailleur allows the high gear limiter to be adjusted so as to achieve such a position that the chain in high gear will rub against the frame from its outer part. Thus, at the time of shifting the reverse gears, it will not be necessary to carry out the adjustment often.