• ROLLING RESISTANCE COEFFICIENT. TIRE SELECTION

    Let's talk about choosing a new "shoe" for your car. If the car is more or less new, then the main criterion for buying is usually the brand and model of the tire, which it was equipped with on the conveyor. For further details, go here: rolling resistance tires

     

    The quality of modern car tires is determined by such parameters as rolling resistance coefficient, car handling on wet and dry surfaces, braking properties, aquaplaning indicators of a new tire and its resistance to wear, noise, mileage, price, comfort ...

     

    However, the problem is that for different participants in the car market - car manufacturers, tire sellers and drivers who buy tires in the secondary market - these parameters have different priorities.

     

    Who likes what

     

    It's no secret that every car manufacturer has its own requirements for tires intended for the initial complete set of cars. At the same time, they are by no means universal - they can differ significantly from company to company.

     

    For example, one automaker puts forward very stringent requirements for the rolling resistance coefficient, which directly affects the economy of a car; for another, they will be significantly softer. One company is extremely demanding on the aquaplaning parameters of a worn tire, while for another they are not critical. However, the requirements for a tire for the aftermarket will also be different.

     

    The explanation is simple: the car, first of all, needs to be sold, therefore the characteristics of all its components are subordinated to a single goal. The consumer wants a car with low fuel consumption - here are the new fuel-efficient engines and tires with a lower rolling resistance coefficient. Comfort is important - here is a comfortable interior, energy-intensive suspension and low-noise tires. Thus, each element forms the idea of ​​the car as a whole.

     

    And in the secondary market, the consumer is guided by some of his own preferences, often completely different from the ideas of automakers. For example, according to market research, the price and design of the tire are very important for the end consumer ...

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    One in many faces

     

    Thus, in order to meet different requirements, tires cannot have the same parameters, and therefore will be different. That is, the dimensions, design and name will be the same, but structurally, albeit slightly, the tires will be different. For example, have different radial or diagonal stiffness, a different tread filler and, possibly, a slightly modified tread pattern. Let's say, slightly shifted blocks, an increased number of lamellas ...

     

    However, according to manufacturers, these changes will not affect the experience of the end user in any way. Indeed, in any case, it will be good, high-quality tires, albeit with an emphasis on some "own" parameters.

     

    However, when delivering to the conveyor, it is important to maintain the specified parameters on the entire array of tires. At the same time, it is considered quite satisfactory if the characteristics of 10% of the tires produced do not meet all the requirements of the automakers. These 10%, (this is not a marriage!) And go to the secondary market.

     

    At the same time, if the aftermarket demands more, additional tires are produced to meet the demand. For the aftermarket, a specification is produced that is as close as possible to market requirements.

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