Protect your spare from sun, rain, and road grime with ADCO's heavy-duty vinyl Size F tire cover. Built for RVs, travel trailers, and fifth wheels, this cover fits snugly over 29" diameter spare tires and seals out the elements that degrade rubber over time -- UV rays, ozone, and moisture. A simple, durable solution that extends the life of an expensive spare.
Spare tires are often mounted on the rear of travel trailers or underneath RVs where they take constant sun and weather exposure. UV radiation is the number-one cause of sidewall cracking in unmounted spares -- a problem that can render a tire unsafe before it ever touches the road. ADCO's Size F cover wraps your 29" spare in heavy-duty vinyl, blocking UV rays and shielding the rubber from ozone, moisture, and road debris.
The cover secures with an elasticized back panel and a hollow bead welt cord that cinches around the tire edge for a snug, wind-resistant fit. Reinforced nylon thread at every seam resists tearing even after repeated removal and reinstallation through multiple RV seasons.
Thick vinyl outer layer resists cracking, fading, and moisture absorption through years of outdoor exposure.
Hollow bead welt cord plus an elasticized back panel grip the tire edge firmly and resist wind lift on the road.
Nylon thread reinforcement at all seams prevents splitting during installation and under stress from vibration.
Backed by ADCO's limited 3-year manufacturer warranty for peace of mind on a long-haul investment.
Rubber compounds in tires begin degrading from UV and ozone exposure even when the tire is stationary. Cracks in the sidewall -- sometimes called dry rot -- can develop in as little as one to two seasons of unprotected outdoor storage. A cracked spare may hold air but fail under load, which is exactly when you need it most. Covering the spare every time the RV is parked is one of the lowest-cost, highest-value maintenance habits an RV owner can develop.
ADCO sizes spare tire covers by the outside diameter of the tire, not by the rim size or tire width code. Measure your spare's outside diameter before ordering. This Size F cover is sized for a 29" outside diameter. If your spare measures 27" or 30", select the corresponding ADCO size designation for a proper fit.
This cover is a common fit for many Class A and Class C motorhome rear-mounted spares and travel trailer tongue-mounted spares that use 29" diameter tires. Common tire sizes that typically fall near the 29" outside diameter include ST205/75R15 and similar light-trailer fitments -- but always verify your tire's actual molded diameter before purchasing.
Rim size (15", 16") is not the same as tire outside diameter. To measure: stand the tire upright and measure straight across the tread face from ground contact to the opposite tread face. That measurement is your outside diameter. This cover fits tires that measure 29" by that method.
Rinse the vinyl cover with clean water once or twice a season and allow it to dry fully before storage. Avoid petroleum-based cleaners that can degrade the vinyl. A light application of vinyl protectant extends cover life and maintains flexibility in cold-weather climates.