How to Replace an Inner Tube on a Mountain Bike: A Step-by-Step Guide
Firstly, loosen the wheel bolts with a spanner and remove the wheel from the bike. Then, remove the tire from the rim by using a tire lever to pry it off. Once the tire is off, remove the old inner tube from the tire by pulling it out. Insert the new inner tube into the tire and put the tire back onto the rim. Inflate the tube slightly to give it shape and put the wheel back on the bike, tightening the wheel bolts. Lastly, fully inflate the tire to the recommended pressure and check for any leaks.