What happens if the tire is mounted backwards?
2 Answers
Tire mounted backwards will reduce the vehicle's grip, cause uneven resistance on both sides, thereby decreasing braking effectiveness, accelerating tire wear, and potentially leading to vehicle deviation and unstable steering. If the tire is installed backwards, the impact can be quite severe because the tread pattern design and its orientation are directional, playing a crucial role in water drainage and anti-skid during driving. For unidirectional tires, the side with an arrow is usually the front side, while the other side is the back. For symmetrical tread tires, the side with the production date can be considered the back side. As for asymmetrical tread tires, the front side will have the word 'outside' in English to distinguish between the front and back sides.
I used to drive with asymmetrical tread pattern tires, and if they were mounted in the wrong direction, the consequences were severe. For example, braking distances felt longer on highways, especially on wet roads where the tires were more prone to skidding because the tread grooves were designed incorrectly, drastically reducing grip—it was downright dangerous. Once, I encountered this issue on a business trip, and the car noticeably lost stability, nearly causing an accident. I had to rush to a repair shop to get it fixed. Experience taught me that incorrect tire direction accelerates wear, especially in the center, which wears out alarmingly fast, rendering the tires useless within months. In short, this is no trivial matter. When changing tires, always pay attention to the directional arrows, regularly check the rotation direction, and ensure driving safety. Don’t cut corners to save a bit of effort.
