Bicycle Tyre Width Rolling Resistance
Tubolito inner tube tests.
Bicycle tyre width rolling resistance. A reasonable performance improvement when going from a 23mm to a 25mm tyre would be a. The answer lies in tyre deflection. In general rolling resistance with a road tire 23 to 28mm wide is at a minimum somewhere in the range of 80 to 120 psi about 6 to 8 bars on most roads with most tires for people of most weights but it s very hard to say what is the ideal pressure. Bicycle rolling resistance special articles.
In contrast to a car a cyclist has only very limited physical power which he wants to apply as efficiently as possible. The main reason for the loss of energy is the constant deformation of the tire. There are a number of factors that determine a tyre s rolling resistance including construction the rubber compound used for the tread inflation pressure the width of the tyre and the tread. Rolling resistance is the energy that is lost when the tire is rolling.
Each bicycle tire should of course roll as easily as possible. 29 kmh 18 mph load. The current best performers for rolling resistance are very light tyres with thin treads and casings. Tubeless sealant rolling resistance.
Tubeless vs latex vs butyl tubes. The fastest rolling tire the 300 tpi strada 24mm and the widest tire the 27mm paris roubaix had the biggest increase in rolling resistance 1 6 watts when dropping pressure from 112 psi to 84. Wider tyres roll faster says dave taylor marketing manager at tyre brand schwalbe. Tu tubular tire type price range buy at measured width on a 17 8 mm inner width rim at an air pressure of 100 psi 6 9 bars width weight rolling resistance at 120 psi 8 3 bars single tire speed.
The trend to move to a wider tyre comes with a slight advantage in rolling resistance over narrower tyres. Gp 5000 23 25 28 32 comparison. Each tyre is flattened a little under load. Gp 5000 endurance test.
Marathon 32 37 40 47 comparison. When compared to the fastest tubeless road bike tires that are extremely thin and light the grand prix 5000 tl offers a much higher tread thickness and puncture resistance while rolling resistance is within 1 2 watts of the fastest tires. The best road bike tires.