Adjustment of switching speeds on the bike: features

The mechanism of the switching speed on a bike is an important element of modern mining and sports models of this vehicle. The system of such mechanisms is very diverse, however, the principle of adjustment is almost the same. However, some certain features they have.

Basic rules

For more radical adjustments need to slightly Unscrew the two adjusting screws that are marked with the symbols Lo and Hi, and the nut fastening the cable shifters. If there is a nut, tightening the cable, screwed it back in. Then to adjust the switching of the Cycling speed required to take the screw Lo (+) and debug by twisting or weakening the position of the shifters. This lever will provide the presence of the rollers first gear and bottom big gear in the same plane. The adjusting screw you need to twist gently and at high speeds, watching the state of the switch on the small and big stars.

The next step is to slightly tension the cable actuator switch – must be set first gear – then this position is securely locked with a screw. Then the switch is set to the maximum speed, and a chain on the foot block is placed on the big star and adjust its position by a screw Hi (+). Finally, we need to monitor to be sure the gears were in the same plane. Bicyclists should remember that the last two transmission cannot be used together.

Additional rules

First adjustment should always be cleaned of dust, dirt and debris, and lubricants. To properly put a bike chain, should see that on the front mechanism, it was hanging on the biggest star, and rear – the smallest. To check the mechanism adjustments you need to switch the speed lever down one notch so that the chain was on the next star. If not, you must adjust the cable tension and check the parallelism of the stars, as well as frame switch. When the shift switch 1-2 mm nothing bad will happen, but the speed will be switched with difficulty.

The most popular mistakes of beginners include been carried out incorrectly setting screw high gear, with the result that the switch is bad from first gear up or down. Also common bad screw fixing chain that is accompanied by the dropping from the carriage and actuation of the first transmission. Experienced cyclists recommend that after each successful Cycling trip to lubricate his gears and the carriage with grease to protect them from premature wear and better contact of the rubbing surfaces.