You will want a cover designed to fit tire diameters between 40" and 42". In the SnapRing brand, this will be the SnapRing TireSavers Tire Covers for 40" to 42" Diameter, # ST7005WH for white in a quantity of 2ea.
We have other option with the Adco Tyre Gard RV Wheel Covers. These feature a durable design that slips on over the tires securing with bungee-ball cords and come with a 3-year warranty. They are available in White # 290-3949, Black # 290-3977, Diamond Plate # 290-3749, and... view full answer...