Ensuring that your bike tires are inflated to the proper tire pressure is essential to reducing a flat tire. Here is an instructional video on how to check what air pressure your road bike tire should be inflated to, and how to do it. Remember, a road bike and a mountain bike are two different types of bikes. A mountain bike usually should be inflated to a lower tire pressure PSI than a road bike. If you can’t find what the tire pressure of your tires are, then please check your instructional manual, go to your bike’s manufacturer’s site, or local bike shop.