Sometimes it’s rather difficult to choose the right tyres for replacing the standard ones. An example of such tyre marking: 31×10.5 R15, where 31 is the overall wheel diameter in inches, 10.5 – the tread width, 15 – the rim diameter. The imperial marking standard is mostly used by American manufacturers. The letter R indicates that the tyre is radial. According to it, tyres are marked as follows: 265/75 R15 where 265 is the tyre width in mm, 75 – the sidewall height as percentage of the tyre width, 15 – the rim diameter in inches. The metric system is popular among European and Asian manufacturers. Two systems of units are used for marking the tyre size: metric and imperial. Basically, by changing the rim diameter and sidewall height, you can slightly increase or decrease the road clearance of your vehicle. As a rule, this involves using tyres with a lower sidewall height. As part of car tuning, car owners can change it by installing tyres of a larger diameter than standard ones. So you should always check whether the tyres are interchangeable. Installation of higher profile tyres without changing the wheel rim diameter can distort the speedometer readings. Low profile tyres improve its steerability, dynamics, and maneuverability. High profile tyres perfectly absorb impacts and ensure smooth and soft ride of the vehicle. The higher it is, the better are damping characteristics of the tyre. Also tyres of this kind ensure better off-road performance on snowy roads. Cars with narrow tyres are less prone to getting into a rut. In addition, the speed at which aquaplaning can occur reduces. However, a wider tread can impair the vehicle steerability and increase fuel consumption. Wider tyres contribute to shortening of a braking path, minimize the risk of wheel spinning during abrupt acceleration. Cars equipped with wider tyres are more stable on dry paved surfaces.
TIRE SIZE CALCULATOR PATCH
It determines the contact patch area of the tyre and, hence, its grip properties.
Key parameters for interchangeability of car tyres
TIRE SIZE CALCULATOR HOW TO
Here we tell you about improvements that can be achieved by such tuning and explain why you need a tyre calculator and how to use it. In most cases, to adjust the riding characteristics of your vehicle, you can simply equip it with tyres of a different size. Do you want to improve the steerability of your vehicle and its stability on a slippery road? Or would you like to make its ride smoother and softer? There is no need in serious modifications to your car’s suspension.
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