Is a 45 tire too thin?
2 Answers
45 tires are not considered thin. Below is relevant information about 45 aspect ratio tires: 1. Professionals explain that tires with an aspect ratio generally below 45% are referred to as "thin tires"; 2. The so-called aspect ratio refers to the ratio of the tire's natural thickness to its width; 3. For wheels of a certain width, the lower the aspect ratio, the thinner the tire section; 4. Thicker tires are more prone to distortion. On high-quality road surfaces, if the aspect ratio is low and the sidewall is short, the tire is less likely to distort, allowing for more effective support, thereby providing greater traction and achieving more responsive handling. However, tires must have a certain thickness to isolate the wheel rim from the road surface. On rough and poor roads, tires with very low aspect ratios struggle to provide adequate cushioning.
I've been driving for over a decade and have used tires with various aspect ratios. My previous car had 45-series tires, which indeed provided precise handling during high-speed cornering and strong grip, making it feel particularly sporty. However, thin tires also come with obvious drawbacks, such as loud road noise, poor cushioning, and a harsh ride over speed bumps or potholes, often causing discomfort from the jolting. Over time, they may also develop bulges, especially in areas with many potholes, requiring frequent tire pressure checks to avoid blowout risks. So, 45 isn't absolutely too thin—it suits performance-oriented sports cars or young drivers who frequently drive in the city. But for seasoned drivers like me who are used to long-distance driving, it might be too taxing. I'd recommend considering a higher aspect ratio, like 55, to balance comfort.
