How To Adjust The Front Derailleur On A Bike. Tighten the bolt once its adjusted. If your front derailleur is properly tuned your chain will shift crisply from one chainring to the next without hesitating between rings or overshooting them and jumping off the chainring set.

The essential part of the Front Derailleur Adjustment is how the derailleur designed. Rotate your pedals with one hand and shift your front gear lever through its full range of gear options with your other hand. With the bike held off the ground and the chain now on the largest cog at the back test the front derailleur by moving the chain between the smallest and next chainring using the gear lever.
Before checking limit screw adjustments check the derailleur placement.
For that you need to turn the screw by the screwdriver. But some newer models are much customized and give you an automated process to adjust. If the derailleur cage is excessively far above the big chainring it is more probable to shift ailing. With the bike held off the ground and the chain now on the largest cog at the back test the front derailleur by moving the chain between the smallest and next chainring using the gear lever.
