Why can't you put tires from different sets on one car?






The desire to save money on the purchase of tires often pushes car owners to install different types of rubber. Tires with varying degrees of wear, tread pattern, and compound stiffness are mounted on the front and rear axles.
This practice critically reduces the controllability of the vehicle and poses a direct threat to road safety. The difference in the characteristics of the wheels' grip on the road leads to unpredictable behavior of the car in emergency situations.
The difference in the coefficient of adhesion and the risk of skidding
Each tire model has a special chemical composition of the rubber compound and a tread pattern. These parameters determine how the wheel clings to the asphalt, drains water, and behaves when braking. If different tires are installed on the wheels, the axles of the car will have a different coefficient of adhesion.
If you brake in an emergency or make a sharp turn, this will cause an instantaneous imbalance of forces. The danger of mounting dissimilar tires is manifested in the following aspects:
- unpredictable demolition of the front axle when entering a turn;
- sudden skidding of the rear axle on a wet surface;
- uneven distribution of braking forces on the wheels;
- incorrect operation of the anti-lock braking system.
The electronic assistants of the car are not able to compensate for the physical difference in the grip of dissimilar tires. As a result, the trajectory of the car becomes uncontrollable.
Aquaplaning and drainage properties
The ability of the tire to withstand aquaplaning depends on the depth and configuration of the tread grooves. The rain tire effectively removes water from the contact spot at high speeds. If you pair it with worn or winter tires on the same axle, the wheels will float in puddles at different times.
This causes the car to turn around abruptly when it gets into deep water on the highway. The risk of loss of control increases many times, as the driver does not have time to react to the sudden loss of grip of one of the wheels:
- moving the car towards the wheel with the worst drainage;
- complete loss of steering information;
- increase the braking distance on wet asphalt by one and a half times;
- increased load on the suspension elements due to different rolling resistance.
Even a small puddle at a speed of 80 km/h can cause a serious traffic accident. Using the same rubber ensures that the wheels behave synchronously on wet roads.
Transmission wear and differential load
Installing tires of different diameters or with varying degrees of wear on the driving axle creates a constant load on the inter-wheel differential. Due to the difference in circumference, the wheels rotate at different speeds even when moving along a straight trajectory. The differential gears are constantly forced to compensate for this difference, which leads to overheating and accelerated wear.
Modern four-wheel drive vehicles with electronically controlled clutches are particularly sensitive to wheel diameter differences. The computer perceives the different rotational speeds of the axes as slipping and constantly locks the clutch, which quickly puts it out of action.
Saving on the purchase of a complete set of wheels results in expensive repairs to the transmission and suspension. Safety on the road directly depends on the uniformity of the characteristics of all four points of contact of the car with the road surface. In essence, this promotional key is your most effective tool for starting your betting journey with a significant head start. The 1xbet promo code today which unlocks 100% bonus up to $/€130 for sports or the complete casino offer of €1950 with 150 free spins, is indispensable for maximizing your winning opportunities. Remember, this code is for new users only and must be entered during the registration process, as it cannot be applied after the fact. With such a generous welcome offer, extensive betting markets, and a reputation for reliability, this platform is a compelling choice their online gaming experience.
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