Keep your spare tire ready for the road by shielding it from sun, UV degradation, and weather exposure. The ADCO 1756 is a purpose-built vinyl spare tire cover for RVs, travel trailers, fifth wheels, and tow vehicles running 28-inch diameter spare tires. A snug elasticized fit and reinforced seams mean it stays put at highway speeds and holds up season after season.
A spare tire sitting exposed on the back of your rig is under constant attack -- UV rays break down rubber compounds, causing cracking and dry rot that can make a tire unsafe even before it ever touches the road. The ADCO 1756 puts a durable barrier between your spare and the elements, extending tire life and ensuring that when you actually need that spare, it is in usable condition.
ADCO has been manufacturing RV tire covers since 1986, and the Size I cover is one of their most popular fits for mid-size trailer and motorhome applications. The construction is straightforward and proven: heavy-duty vinyl shell, hollow bead welt cord around the perimeter, elasticized backing for a secure wrap, and nylon thread seams that resist tearing under tension and road vibration.
Heavy-duty vinyl construction blocks UV rays that degrade rubber, helping prevent dry rot, cracking, and sidewall checking on your stored spare.
The hollow bead welt cord combined with an elasticized back panel cinches the cover snugly around your tire so it does not blow off at highway speeds.
All seams are reinforced with nylon thread rated for tear resistance, keeping the cover intact through seasons of road vibration, wind, and temperature cycling.
Sized specifically for 28-inch diameter tires. ADCO's sizing system ensures a tailored fit rather than a generic stretch cover that bunches or gaps.
Tire rubber contains antiozonants and UV stabilizers from the factory, but those compounds deplete with exposure. A spare mounted externally on a bumper, swing arm, or roof rack can degrade significantly faster than tires in active use -- because rolling tires flex and circulate those protective compounds, while a static spare just sits and oxidizes. UV cracking typically starts on the sidewall and can compromise structural integrity within a few years of unprotected outdoor storage.
The Size I designation refers to ADCO's proprietary sizing chart based on overall tire diameter -- not the tire's width or load rating. This cover is designed for tires with an overall diameter of 28 inches. Measure your spare from tread face to tread face across the full diameter before ordering, as cover fit is diameter-specific.
Installation is straightforward: slip the cover over the tire face, then pull the elasticized back panel over the rear rim lip. The bead welt cord provides structure so the vinyl holds its shape rather than sagging or flapping. No tools required.
The Polar White finish is a clean, neutral choice that blends with most RV exterior color schemes. White also reflects radiant heat more effectively than dark covers, which helps reduce the temperature differential the tire experiences on hot days -- an added benefit beyond just UV blocking.