Camco 45249 Tire Cover 33-35 in Black Vinyl, Set of 2

The Camco 45249 is a set of two slip-on tire covers made for 33 to 35 inch tires. They're cut from heavy black vinyl and drop right over the tire, no straps to thread and no tools to dig out. If you've got an RV, a travel trailer, or a boat trailer with a big spare hanging off the back, these are the covers that keep that rubber from baking in the sun while the rig sits.

Here's the thing about tires that don't move much. Sunlight is what kills them, not miles. UV rays dry out the rubber, the sidewalls start to check and crack, and a tire that looks fine can be aging from the outside in the whole time it's parked. A cover is the cheapest insurance there is against that. Slip one over a spare or a stored wheel and you cut off the sun, the rain, and most of the road grime that settles into the rubber over a season.

Sizing is simple, but measure before you order. These fit tires with an overall diameter between 33 and 35 inches. That's the full height of the tire, top to bottom, not the wheel size stamped on the rim. Most larger RV and trailer spares land in that range, along with plenty of dual-axle boat trailer tires. If your tire measures under 33 or over 35, it's the wrong size and the cover will either fight you going on or flap loose once it's there.

Installation is about as easy as it gets. Line the cover up with the tire and pull it over, working it around the edge until it seats. That's it. No buckles, no cords, no hardware. Because you get two in a set, you can cover a pair of spares, both tires on a single-axle trailer, or keep one on the mounted spare and stash the second for later.

A couple of things we've learned out in the yard. If the cover sits tight against the wheel for weeks at a time, water can collect at the bottom and sit against the rim. On a boat trailer that's parked a lot, a little airflow goes a long way, so don't cinch it down against a wet wheel and expect it to breathe. Black vinyl also does what black vinyl does in strong sun, it'll lighten over time. A quick shot of vinyl protectant every few months keeps it looking sharp and helps the material stay flexible.

Winter storage is where these earn their keep. A rig that sits from fall to spring takes months of sun, freeze, thaw, and salt splash off the driveway, and the spare usually takes all of it uncovered because nobody thinks about the tire they aren't using. Throw a cover on before you park it and you pull it off in spring to a tire that looks the way it did when you tucked it away. Same goes for a boat trailer that lives at the ramp lot or along the side of the house between launches. It's a small habit that adds real years to a set of tires.

Who's this for? Anybody storing a rig between trips who doesn't want to pull the spare and haul it inside. RV owners parking for the season, trailer owners who leave the rig in the driveway, boaters whose trailer spare lives outside year round. It's a simple piece of gear that does one job well. Keep the sun off your rubber so the tire's still good when you need it.

What it's not? It's not a fitted, strapped-down cover for a whole bank of tires, and it's not going to armor a tire against a curb or a road hazard. It's slip-on sun and weather protection, sold in a pair, sized for the big 33 to 35 inch tires that usually get left out. For that job, at this price, it's an easy call.