Bicycle Quarterly Tyre Pressure

We did not believe it at first either so we ve tested it numerous times.

Bicycle quarterly tyre pressure. Narrow tires need more air pressure than wide ones. Road bike tyre pressures. It was already known that when measured on a smooth drum rolling resistance didn t decline much beyond a certain pressure. At bicycle quarterly we ve been researching tire performance for the last eight years and the most revolutionary finding is this.

These two extremes however represent only the upper and lower pressure limits. Tommaso has some simple advice to get started on your ideal tyre journey if you used to ride 116 130 psi 8 9bar on a 23mm tyre you might want to drop pressure in a 25mm tyre by 1bar 14 psi. A thin road tyre would have 6 8 bar of pressure much like a road bike have a look at our tyre pressure calculator for road bikes while for a fat bike tire a pressure of 0 5 bar will suffice. Under load a tyre flattens until it presses against the road surface with the force of the weight it supports so a tyre supporting 100lb at a pressure of 100psi will have a contact patch area of one square inch.

For heavy riders bikes narrow tires require very high inflation pressures and wide tires are a better choice. 90psi 6 2bar front 93psi 6 4bar rear. Road bike tyres are run at a higher pressure than mountain bike tyres to reduce rolling resistance and the chance of pinch flat punctures. Oli woodman immediate media running your tyres at either too high or too low a pressure can be.

It s been confirmed time and again with different methodologies. This tire has too much air. As the tyre rolls along the contact patch moves around its circumference flexing the tyre as it moves. This tire has too little air it s squishy and hard to turn.

Tyre pressure inflating your tyres to the correct pressure is an essential part of bike maintenance. By jan heine width tire drop no load full load tire cross section optimizing your tire pressure for your weight inflating your tires to achieve 15 tire drop will optimize your bicycle s performance comfort and handling. Tire pressures for 37 mm tires. Road tires typically require 80 to 130 psi pounds per square.

Tire pressure has almost no effect on a tire s speed. Suggested tyre pressure for road bike tyres 25mm for a 70kg rider. Proper tire pressure lets your bike roll quickly ride smoothly and avoid flats. But as editor jan heine discusses here bicycle quarterly s real world testing indicates that when tyre pressures get too high there s no further reduction in rolling resistance.