Cover Size Guide:
- COVER SIZE 14" FIT FOR: tire diameter 60~69cm
- COVER SIZE 15" FIT FOR: tire diameter 70~75cm
- COVER SIZE 16" FIT FOR: tire diameter 76~79cm
- COVER SIZE 17" FIT FOR: tire diameter 80~83cm
How to calculate your tire diameter?
Step 1: Find Your Tire Parameter. It's written on your tire side.
Step 2: Calculate Your Tire Diameter.
If your tire is written with P215/60R16, A=215 B=60 C=16.
Tire diameter=A*B/500+C*2.54 =215*60/500+16*2.54 =66.44cm
You need to buy the 14" cover.