Bicycle Rolling Resistance Coefficient

Despite rolling resistance only accounting for about 10 of the total resistance experienced by a typical ultra distance cyclist over an entire race different tire choices can make a significant impact on average cycling speed.

Bicycle rolling resistance coefficient. Rolling resistance 120 psi default rolling resistance 100 psi rolling resistance 80 psi rolling resistance 60 psi brand model puncture resistance tread puncture resistance sidewall rating tire thickness tread tire thickness sidewall weight width measured. Best road bike tires order by. 42 5 kg 94 lbs rr 25 psi 1 7 bar rolling resistance at 35 psi 2 4 bars single tire speed. Tubeless sealant rolling resistance.

29 kmh 18 mph load. C l rolling resistance coefficient dimension length coefficient of rolling friction mm in r radius of wheel mm in. Two forms of this are hysteresis losses see. 42 5 kg 94 lbs rr 30 psi 2 1 bar rolling resistance at 45 psi 3 1 bars single tire speed.

Rolling resistance is the energy lost by the tires deforming as the wheels turn. 42 5 kg 94 lbs rr 60 psi. With so much emphasis on weight and more recently aerodynamics we often overlook another major force component that riders must overcome to propel the bike forward. Rolling resistance at 25 psi 1 7 bars single tire speed.

29 kmh 18 mph load. C rolling resistance coefficient dimensionless coefficient of rolling friction crf w m a g normal force or weight of the body n lb f m mass of body kg lb a g acceleration of gravity 9 81 m s 2 32 174 ft s 2 the rolling resistance can alternatively be expressed as. When we first created best bike split we took in as much data as we could find to create some standard baseline coefficient of rolling resistance crr values based on the typical tire types and sizes of the time. Bicycle rolling resistance special articles.

29 kmh 18 mph load. Rolling resistance at 30 psi 2 1 bars single tire speed. That is not all the energy needed for deformation or movement of the wheel roadbed etc is recovered when the pressure is removed. Gp 5000 endurance test.

The best road bike tires. Tubeless vs latex vs butyl tubes. Rolling resistance sometimes called rolling friction or rolling drag is the force resisting the motion when a body such as a ball tire or wheel rolls on a surface it is mainly caused by non elastic effects. 29 kmh 18 mph load.

Gp 5000 23 25 28 32 comparison. Rolling friction coefficients some typical rolling coefficients. For example if you put a 50 kg weight on a bicycle that has tires with a coefficient of rolling friction of 0 002 the rolling resistance would be 0 002 50 0 01 kg 10 grams. 42 5 kg 94 lbs rr 35 psi 2 4 bar rolling resistance at 45 psi 3 1 bars single tire speed.

Since rolling resistance can be very small determining the coefficient of rolling friction is not an easy task. Tubolito inner tube tests. 42 5 kg 94 lbs rr 45 psi 3 1 bar rolling resistance at 60 psi 4 1 bars single tire speed. Marathon 32 37 40 47 comparison.

Rolling resistance coefficient c c l mm 0 001 0 002 0 5 railroad steel wheels on steel rails 0 001 bicycle tire on wooden track 0 002 0 005 low resistance tubeless tires 0 002 bicycle tire on concrete 0 004 bicycle tire on asphalt road 0 005 dirty tram rails. F r c l w r 2 where.