Think you need to head to the bike shop when you have a flat? Not anymore.

Our friends at Liv/Giant give you the skinny on changing thin or fat tires at home or on the road. All you need are few trusty tools: a floor pump, tire levers, an allen key, and a new tube. Watch as Val Vanderpool takes you through the step by step process of gauging correct tire pressure, selecting the appropriate tube, and changing a tire if needed.

Basic bike maintenance–demystified.