How to Adjust Your Mountain Bike Front Derailleur for Smooth Shifting and Better Performance
To adjust the mountain bike front derailleur, start by shifting the bike into the smallest chainring and adjusting the lower limit screw until the chain is aligned with the derailleur. Next, shift the bike into the largest chainring and adjust the upper limit screw until the chain is aligned with the derailleur. Finally, adjust the cable tension using the barrel adjuster until the shifting is smooth and the chain doesn’t rub on the derailleur.