Motocross bikes and dirt bikes in general use tube-type off-road knobby tires commonly inflated to 12 to 15 psi. These knobby tires come in a wide range of side-wall stiffness ratings and tread ...

How much air should be in your Harley's tires? The right PSI can vary based on the model you're riding, and maybe even differ ...

Motocross bikes and dirt bikes in general use tube-type off-road knobby tires commonly inflated to 12 to 15 psi. These knobby ...

Thinner tires have very high psi rates and offer a lot more feedback, ... Road bike tires we recommend. Best of the best: Continental’s Grand Prix 4000 S II. Our take: ...