Mountain bike tire pressure ranges from 25Psi to 40Psi. Depending on wheel and tire size, mtb recommended tire pressure should be varied by 5Psi for larger diameter.
All race tuning, from Formula One to Downhill, begins with an accurate tire pressure assessment, but it is important to remember that even causal riders will benefit from finding the ideal tire pressure to use.All race tuning, from Formula One to Downhill, begins with an accurate tire pressure assessment, but it is important to remember that even causal riders will benefit from finding the ideal tire pressure to use.
Every rider and tire combination has an air-pressure sweet spot, so use Pinkbike's inflation tips to find your perfect pressure and improve your shred.Some tire-pressure must-knows...
• Tire pressure is measured in PSI, which stands for P
ounds per S
nch. It is a measurement of the pressure produced by one pound of force applied to an area of one square inch. Not that you need to know that to find your ideal tire pressure, but now you do!
• Invest in a hand-held digital or dial pressure gauge to check your tires and keep it in your gear bag. Pressure values vary significantly between floor pumps and you won't always be using yours.
• Use a series of taps on the air valve to release pressure in a controlled manner (a small Allen wrench works well for Schrader valves
• Write it down: Pro racers keep a written log of tire pressure, bike-fit and suspension settings, but you don't have to go that far. Write your starting pressures on the rim beside the valve with a Sharpie.
• Tire manufacturers emboss their sidewalls with minimum and maximum pressures that you may or may nor agree with--so consider yourself warned.
• Higher tire pressures do not always result in easier and faster rolling speeds. This is because a harder tire will want to deflect off of obstacles instead of letting the tire conform to the ground, absorb the impact, and roll over it without losing as much speed. Don't believe me? Picture yourself on a skateboard, rolling down a smooth road - you'll have no troubles. Now do the same thing on a rough road, or one with a bit of gravel on it, and you'll have much more trouble. This is because the skateboard's wheels are very hard and want to stop when they pass over even the slightest rough patch. This is why too much air can actually create more rolling resistance.
• Tire pressure is not only dependent on the type of tire you are using, but also the terrain that you're riding. Smooth and faster trails can be ridden with slightly more air pressure than a rougher trail. Taking the time to figure out what works best on the trails that you ride most often will only make your rides even better.
• Different tires, even of the same width, often work better at different air pressures. If you've switched to another brand or model of tire it will pay dividends to experiment with tire pressure, even if it is only a few PSI more or less than what you were running previously. What's needed: tire pump
, pressure gaugeTire pressure is without a doubt one of the most important aspects of a proper setup. Watch the video to learn why: