What is the difference between 235 and 245 tires?
3 Answers
The differences between 235 and 245 tires are as follows: 1. Different tire widths: The 245 tire has a width of 24.5 centimeters. The 235 tire has a width of 23.5 centimeters. 2. Different aspect ratios: The aspect ratio of the 245 tire is 45, meaning the tire thickness is 110.25 millimeters. The aspect ratio of the 235 tire is 50, meaning the tire thickness is 117.50 millimeters. 3. Different speed ratings: The speed rating of the 245 tire is Y, indicating a maximum speed of 300 km/h. The speed rating of the 235 tire is W, indicating a maximum speed of 270 km/h.
As a veteran driver who frequently takes long trips, I've used both 235 and 245 tires, and the difference is quite noticeable. The 235 means the tread width is 235 millimeters, while the 245 is slightly wider, offering better grip, especially when cornering in the rain. However, the 245 has higher rolling resistance, which might increase fuel consumption by about half a liter per 100 kilometers. When choosing, you need to check the maximum tire width supported by your car—some vehicles with small fender gaps might rub with 245 tires. For highway driving, the 245 does provide more confidence, but for city commuting, the 235 is more economical. If you're considering modifications, it's best to consult a professional shop first and avoid changing blindly.
In terms of maintenance costs, there's a significant price difference between 235 and 245 tires. Taking common 17-inch tires as an example, 235 tires may be around 100 yuan cheaper per tire, saving nearly 500 yuan for a set of four. However, 245 tires have a larger contact patch, resulting in shorter braking distances during emergency stops. I've noticed that 245 tires generally have thicker sidewalls, making them less bumpy over speed bumps, though steering feels slightly heavier. It's important not to overinflate wider tires, as they tend to wear faster when underinflated. When choosing tires, don't just focus on width; also consider details like production date and tread groove depth.
