What is the difference between tire 45 and 55?

[EloiseFitz]

The difference between tire aspect ratios of 40 and 45 lies in the fact that the 45 has a higher aspect ratio, providing better cushioning capability and higher comfort, but poorer road feel and weaker lateral resistance during cornering. Below are relevant introductions: 1. Low aspect ratio: Tires with large inner diameters have shorter sidewalls and wider treads, resulting in a larger contact area and greater pressure-bearing capacity. They are very responsive to road conditions and have strong lateral resistance during cornering, enhancing vehicle handling. After equipping vehicles with wide, large-inner-diameter, low-aspect-ratio tires, besides strong handling, the visual effect also gives a very imposing appearance. 2. Prone to bulging: Since low-aspect-ratio tires are prone to bulging, most car owners believe that a 45 aspect ratio is prone to blowouts. Generally, bulging is caused by pressure. Since 45 thin tires are used, it is advisable to drive on roads with better conditions as much as possible. In such cases, low-aspect-ratio thin tires will not affect tire usage, nor will they be prone to blowouts.