I recommend using the SnapRing TireSavers Tire Covers # ST7005BK on your motorhome with the 295/75R22.5. Your tires have a diameter of 39.9" so these 40-42" tire covers are going to be the best size. The SnapRings are very easy to install and do not require you to strap the cover behind the wheel to hold them in place. view full answer...