1. Width: The 265-70 r17 tires have a width of 265 millimeters, while the 235-55 tires have a width of 235 millimeters. This means that the 265-70 r17 tires are wider than the 235-55 tires.
2. Aspect ratio: The aspect ratio of a tire is the ratio of its height to its width. The 265-70 r17 tires have an aspect ratio of 70, which means that their height is 70% of their width. The 235-55 tires have an aspect ratio of 55, which means that their height is 55% of their width. This means that the 235-55 tires have a lower profile (shorter sidewalls) than the 265-70 r17 tires.
3. Overall diameter: The overall diameter of a tire is the measurement from the top of the tread to the bottom of the sidewall. The overall diameter of the 265-70 r17 tires is approximately 29.6 inches, while the overall diameter of the 235-55 tires is approximately 26.6 inches. This means that the 265-70 r17 tires are larger in diameter than the 235-55 tires.
Due to these significant differences in size and profile, substituting 265-70 r17 tires with 235-55 tires may cause issues such as incorrect speedometer readings, reduced handling and performance, and potential clearance problems with the wheel wells or suspension components. It is always best to use the tire size that is specified by the vehicle manufacturer to ensure optimal performance and safety.
