How much bigger is a 265 than a 245?
The numbers 245 and 265 in tire sizes refer to the tire’s width in millimeters. A 245 tire is 245mm wide, while a 265 tire is 265mm wide, making it 20mm wider. The 245 size is often chosen for better fuel economy, smoother ride, and lower rolling resistance. This number represents the width of the tire in millimeters. In this case, the tire is 265 millimeters wide. This number represents the aspect ratio of the tire, which is the height of the tire’s sidewall as a percentage of its width. In this case, the sidewall height is 75% of the tire’s width.