Do you know the consequences of a small installation error in the tire shop?
Just imagine, a Mercedes-Benz driving on the road suddenly caught fire. The reason behind it was that a tire shop employee installed the front and rear tires backwards. This sounds incredible, but it actually happened in Jiangning District, Nanjing City, and there were no casualties at all.
But this also reminds us that the consequences of installing tires backwards may be more serious than you think...
Front and rear tires installed backwards
Since many high-end performance cars are driven by the rear wheels, the front and rear tires will be different at the beginning of the design, and the natural specifications and sizes will also be different. Generally speaking, the width of the rear wheels will be larger. If you do not distinguish between the front and rear tires, Installing the tires backwards will affect the car's rotation and power. In severe cases, it may even cause the entire car to rotate, causing the vehicle to lose control.
The Mercedes-Benz mentioned at the beginning is because the rear 275mm tires are installed on the front wheels, and the front wheels should actually be installed on 245mm tires. This means that when turning, there is nothing between the front wheels and the steering knuckle. During high-speed driving, the tire rubber will generate friction heat and catch fire. Therefore, be sure to pay attention when replacing it.
Installation instructions: If it is a rear-wheel drive car, the specifications must be installed according to the old tire specifications. Due to the force arrangement, the width of the rear tires will be larger than the width of the front wheels.
Rolling direction reversed
Reverse rolling direction refers to a situation that may occur with single-directional tires. Single-directional tires are tires that can only roll in one direction after being specifically designed. The tread pattern of this type of tire is specially designed to face the direction of the tire. Rolling in a fixed direction can drain water from the tires and reduce resistance, which will result in more fuel economy. If the rolling direction of the wheels is reversed, the fuel consumption will increase, the service life of the tires will be reduced, and the tire grip will be weakened. In severe cases, it may even cause the tires to vibrate, causing the vehicle to drive unstable and prone to safety accidents.
Installation instructions: There will be "ROTAION" and an arrow mark on the single-guided tire. When installing, just follow the direction of the arrow.
Inside and outside installed reversely
Internal and external mounting specifically refers to a situation that may occur in tires with asymmetrical patterns. The pattern orientation and pattern shape of asymmetrical pattern tires all function according to the design. If installed backwards, not only the grip will be reduced, but also the expected effect will not be achieved during emergency braking and emergency acceleration. In serious cases, the braking distance may be increased and the probability of traffic accidents will be increased.
Specifically, the drainage grooves of asymmetric tires have the best drainage effect in the forward direction. If they are installed backwards, the drainage effect will be greatly reduced, which will increase the probability of losing control in rainy and snowy days. In addition, the front of the asymmetric tire has different tread patterns on the outside and inside. The outside will have a special design to provide better support and grip during emergency turns and changes of direction.
Installation instructions: Generally speaking, tires will have inner and outer markings printed on them during production. The inner side is INSIDE and the outer side is OUTSIDE. When installing, just pay attention to the inner and outer markings and install them. In addition, the production date is usually printed on the outside, which is also a reference.
Generally speaking, installing the tire backwards will do no harm. It will not only reduce the service life of the tire, but also affect the fuel consumption, control and drainage performance of the tire. Serious safety accidents may occur. Therefore, tire shops must be sure to install tires when installing them. Pay attention to the front, back, and direction of installation, and don't be careless!
