Frequently Asked Questions
255 represents the width of the tire in millimeters. "35" indicates the aspect ratio, which is the height of the sidewall as a percentage of the tire's width. "R" stands for radial construction. Lastly, 21 denotes the diameter of the wheel in inches.
A tire with the size designation 255/35R21 has a width of 255 millimeters. Hence, making it ideal for muscle cars. For further brand or model-specific information, get in touch with us.