How to choose the correct size?
1. Choose model as size chart .
2. Measure the tire diameter for your tire to choice (not the rim size).
3. Calculate your tire diameter.
For Example: Tire“215 70 R16"
Tire Diameter=215/10/2 .54 70*0.01x2+16=27.85inch
Just replace the numbers 215 70 16 with real tire data,you will get the right size.