Rides on air cycles

The former happens because road treads don't have a lot of air volume. But, because they're skinny tires, there's hardly any air inside.By all means, if you're riding your fat tires exclusively on pavement and smooth surfaces, inflate them as hard as you like (don't exceed the manufacturer's maximum recommendation).This will greatly increase your control and comfort over trails while improving traction and handling.Indeed, if you've been riding off-road on 50 to 60 psi, you'll be amazed at the difference. That'll increase the risk of a flat two ways (this holds true for road and off-road rubber): First, softer tires pick up more debris, which may work into the tires popping the tubes.If you don't, you'll be riding on soft tires, which is asking for trouble. Off-road rubber is inflated to lower pressures and because the tires are much wider than road models, there's considerably more air inside.The most common mistakes are riding with too little pressure in road tires and too much pressure in off-road rubber.Besides damaging the tube, this impact can bend the rim, leading to an expensive repair. Start by trying the manufacturer's recommended pressure, which you'll find printed on the tire sidewall (it's often on a small label but it might be molded into the casing, too, so look closely).These differences mean that fat tires don't seep air very quickly so they don't require frequent inflation the way skinny tires do.To prevent this, check tire pressure on a road bike before every ride.Consequently, even if only a little leaks out (most bicycle tubes are made of butyl rubber, which is porous and naturally seeps air), the pressure and volume are greatly reduced.The jarring effect of bumpy pavement on over-inflated tires robs energy and makes for a bone-rattling ride.Unfortunately, the tendency is to over inflate off-road tires.Second, when you hit holes, ruts, rocks, etc, soft tires can deform to the point that the rim hits the ground or rock so hard that it pinches the tube (between the rim and obstacle) and cuts it in two places, which is what's known as a pinch flat or snakebite puncture (because the holes in the tube resemble a snakebite).