How to Adjust a Derailleur on a Mountain Bike: A Step-by-Step Guide
To adjust a derailleur on a mountain bike, start by shifting the bike into the highest gear in the back and the lowest gear in the front. Then, turn the barrel adjuster on the derailleur until the chain runs smoothly on the cassette. Next, check the shifting in other gears and adjust the cable tension or limit screws as needed. Repeat this process until the shifting is smooth and accurate in all gears.