Spare Tire Cover Weatherproof Universal Wheel Protectors for RV Camper Travel Trailer SUV Truck 15 Inch

Please buy according to the size corresponding to your calculations and not directly according to the tire size! How to choose the most suitable size? Step 1: Find Your Tire Parameter. It’s written on your tire side Step 2: Calculate Your Tire Diameter According to the Parameters Calculation formula: (A*B*2)+(C*2.54) If your tire is written with P225/65R17, the parameters correspond to A=22.5 B=0.65 C=17. Tire diameter=(22.5*0.65*2)+(17*2.54)=72.43 cm You need to buy the 15 inch size. There are three size size 14 inch fit for: diameter 60~69cm size 15 inch fit for: diameter 70~75cm size 16 inch fit for: diameter 76~79cm