This how-to video with Christopher Danz Technical Product Specialist with Performance Bicycle shows you how to fix a flat tire. To fix a flat tire you need a set of tire levers, a spare tube or patch kit, and a pump. The first step is remove the wheel. Insert the tire levers and remove the tire from the rim. Starting with the valve tuck the new tube into the tire then tuck the tire back into the rim and re-inflate the tire.