Size Chart
![size chart](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Check tire parameters
- Example: 205/75/R15
- Formula: (A/10)*0.4*B%*2+C
- A=205,B=75,C15
Fill in its parameters into the formula
- (205/10)*0.4*75%*2+15=27.3 inches
Rounding up, the selected size range: 27-29
You can make a selection based on the tire diameter data after measuring the diameter of the tire with a tape measure.