Psi For A Road Bike Tire
Once you know your tire pressure that only really applies to that one ride.
Psi for a road bike tire. Proper tire pressure lets your bike roll quickly ride smoothly and avoid flats narrow tires need more air pressure than wide ones. Why you need to check your bike tire pressure regularly. In drizzly or rainy weather also lower the pressure by 10 psi for improved traction. There was a time when most riders would opt for 23c tyres on the road pump the tyre pressure up to around 110psi for every ride letting out just a little air to provide extra grip in poor weather.
Road tires typically require 80 to 130 psi pounds. This point is called the contact patch where the tire is flat against the road surface. On a new smooth road your best tire pressure might be 100 psi but bring it down to 90 psi for a rough road. For every 10 degree drop in fahrenheit temperature your tire pressure drops by 2 percent such that a drop from 80 to 50 degrees translates to a drop of 100 to 94 psi.
It is 26 psi on the front and 28 psi on the rear for the tubeless tires. The psi of the tire must equal the weight placed against the tire so the size of the contact patch will be the weight load divided by the air pressure approximately. No matter which type of bike you have be it a road bike a mountain bike or anything else on two wheels tire pressure is not one and done. If the bicycle and rider weigh 200 pounds each tire supports 100 pounds of weight.