Frequently Asked Questions
The 305 50R20 tire size is metric. The first quantity, “305,” refers back to the width of the tire in millimeters. Secondly, the second quantity, “50,” is the thing ratio, which is the peak of the tire’s sidewall as a percent of its width. Thirdly, the “R” stands for radial, indicating the tire’s creation type. The very last quantity, “20,” is the diameter of the wheel in inches.
The width of a 305 50R20 tire is 305 mm. To convert this to inches, you divide 305 by 25.4 (when you consider that there are 25.Four mm in 1 inch), which gives you a width of about 12 inches.
To convert the tire size from millimeters to inches, moreover, you want to recognize each part of the tire size. “305” is the width in millimeters, thus, which converts to about 12 inches.
