we have 325/65/18 tires and this cover fits great if you look closely we cut out the plastic window on the day it arrives as you can see we have a yakima bike rack (so cut out the window ) this was the only cover we found to "fit" our spare tire. Material seems good and strong, straps seem strong enough only time will tell how long it lasts. The photo shows that the cover is dented, it should smooth out over time.