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A clincher bicycle tire mounted on a wheel A cross section of a clincher tire with a puncture-preventing layer (in blue) between the casing and the tread An inner tube rolled up for storage or to be carried as a spare. A bicycle tire is a tire that fits on the wheel of a bicycle or similar vehicle.
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; that is, not all the energy needed for deformation (or movement) of the wheel, roadbed, etc., is recovered when the pressure is removed.
Camber stiffness is a parameter used to describe the camber thrust generated by a tire, and it is influenced by inflation pressure and normal load. [3] The net camber thrust is usually in front of the center of the wheel and so generates a camber torque, twisting torque, or twisting moment. [3]
Hence, For bicycles (and less so for motorcycles) the total rolling resistance increases with increasing tire cross-section diameter. Rolling resistance measurements made on bicycle tires using test equipment not taking into account natural lateral/precessing motion do not accurately measure the rolling resistance of bicycle tires. [1]
12-16.5 Mk1 Croc Tyre with rim center fitted. Airless tires, non-pneumatic tires (NPT), or flat-free tires are tires that are not supported by air pressure. [1] [2] [3] They can be used on small vehicles such as ride-on lawn mowers and motorized golf carts. They also are used on heavy equipment required to operate on sites where risk of tire ...
The results surprised many, including Lennard Zinn who published comments on the article in VeloNews including, "Notable is that rolling resistance is only a weak function of tire width." [ 4 ] Heine summarized information about bicycle tires from articles of Bicycle Quarterly in an article published in Adventure Cyclist in March 2009.
Plot showing lateral force building up as a bicycle tire rolls forward at a 2.4º slip angle. The results from three separate test runs are superimposed. Relaxation length is a property of pneumatic tires that describes the delay between when a slip angle is introduced and when the cornering force reaches its steady-state value. [1]
The European Tyre and Rim Technical Organisation (ETRTO) exists to specify and harmonise sizes of rims and their associated pneumatic tyres across the European Union.ETRTO sizes apply to rims and tyres for vehicles of all types, including bicycles.