Vacuum tires are flat tires with metric units of 3 15/80R22.5, 295/80R22.5 and 275/70R22.5. The crown angle of the tires is zero and the adhesion is strong. It can maintain good driving stability and low friction, which is beneficial to shock absorption and speed improvement. High belt positioning, small wheel radial runout and small resistance. Thus saving 3% fuel.
Extended data:
Vacuum tires are divided into radial tires and bias tires. They all have high elasticity and wear resistance, as well as good adhesion and heat dissipation. Especially radial tire, because the crown angle is zero, the wheel changes little when it moves at high speed, and it can maintain good driving stability and low friction, which is beneficial to shock absorption and speed improvement.
Tubeless tires are much thicker than ordinary inner tube tires, and there is a layer of high quality rubber on the surface. After inflation, the external tension increases, forming a certain pressure on the internal surface, and improving the self-sealing ability of the breach. Once a tire bursts, unlike ordinary tires, the gas will not be completely exhausted in an instant, but will last for a certain period of time to ensure the safety when driving at high speed. Because the tire and the wheel hub are integrally sealed, it requires high manufacturing accuracy, and most of them are die-cast aluminum integrated wheels, with high positioning between tires and minimal wheel radial runout. After using vacuum tires, the comfort and stability of the car will be improved.
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