A common cause for mystery flats is what we call a pinch flat. This happens when you ride on uninflated tires. As you go over bumps in the road, the tire compresses and "pinches" the tube causing a slow leak. Check the side wall of your tire for the maximum pressure rating, and pump your tires before every ride (for high pressure road tires) or at

Use the tire pressure that the vehicle manufacturer recommends. This information located on the Tire Information Placard is normally located on the inside driver's door jamb. Pressure requirements may change when plus sizing tires.