How to Adjust Chain Tension on Your Mountain Bike: A Step-by-Step Guide
To adjust chain tension on a mountain bike, first, shift the bike onto the smallest chainring and the smallest sprocket. Next, loosen the bolts on the rear wheel and slide it back towards the seat tube to increase tension or forward towards the fork to decrease tension. Make sure the wheel is straight, retighten the bolts, and check the tension with a chain gauge or by pressing on the chain. Repeat if necessary until the chain has the correct tension.