Add this option to your tire cover order if you can't find your size in our sizing chart. We'll make a tire cover for your exact measurements. Please measure the face of your spare tire from left to right directly through the center of the wheel and tire. Record the measurement. Then measure the width of the tread portion of the tire. This is the side that grips to the road when driving. Record that measurement. Click on the add to cart button below and insert your dimensions into the fields. Then add your specific themed tire cover to your cart and we'll make a custom size just for you.