Your rig gets all the attention, but the trailer rolling behind it is running the same trails, the same washboard, and the same sharp rock as your tow vehicle. If you tow a pop-up, a teardrop, or a full overland trailer off pavement, that trailer needs its own full-size spare, a solid place to carry it, and something to shield it from sun and road spray. Here is how off-road trailers handle the spare, and how a universal, size-based cover keeps the whole setup protected and coordinated.
Why an off-road trailer needs its own spare
On the highway, a trailer flat is an inconvenience. Deep in the backcountry, it can end a trip. The problem is simple math: the moment your tow vehicle uses its own spare, you have nothing left to give the trailer. That is why experienced overlanders treat the trailer as a separate vehicle with its own recovery plan, starting with a dedicated full-size spare.
Many builders take it one step further and match the trailer's wheels and tires to the tow rig. In long-running threads on Expedition Portal and the Overland Bound community, owners point out that matching sizes and bolt patterns means the two spares are interchangeable, you can rotate tires across both vehicles to even out wear, and in a worst case you can borrow from the trailer to limp the tow rig back to help. Matching is not required, but for remote travel it is a popular insurance policy.
Pop-ups, teardrops, and overland trailers: what carries a spare
"Off-road trailer" covers a range of builds. According to the overview of off-road trailers, the common families are teardrops (a compact hard cabin, often with a rear galley), pop-up or tent trailers (a low-profile box that expands into sleeping space), and larger overland or adventure trailers built around a rooftop tent and cargo. What they share is that they follow your Jeep into places a normal utility trailer never would, so nearly all of them carry a spare somewhere on the frame.
Where trailer spares mount
There are three spots you will see again and again:
- Tongue or A-frame. Many teardrops and pop-ups carry the spare up front on the tongue, keeping the rear galley or hatch clear. It is easy to reach, and it adds a little tongue weight where you often want it.
- Rear mount. Utility-style and military-surplus trailers frequently bolt the spare flat to the rear or onto a cargo rack, out of the way of the living space.
- Swing-out or pivot arm. Larger overland trailers commonly use a swing-away arm so the spare pivots clear of a rear kitchen or hatch. Purpose-built carriers such as the Overland Vehicle Systems trailer spare carrier are rated to hold full-size tires up to roughly 35 inches, which is why a trailer spare is so often a big, exposed target.
Notice the common thread: on an off-road trailer, the spare almost always lives outside, fully exposed. That is the part a cover solves.
Sun and road spray are hard on an exposed spare
An externally mounted spare takes a beating that the tire you are actually driving on does not. It sits still in direct sun for days at a time, so UV slowly breaks down the rubber and fades any sidewall lettering. On the trail it catches mud, grit, and road spray, and on wet highway miles it collects the same brake dust and grime as your rig. None of that ruins a tire overnight, but it ages the sidewall, dulls the wheel, and leaves the back of your camp looking tired.
A cover is the simple fix. It blocks the sun, keeps spray and trail muck off the tire and wheel, and hides a mismatched or road-worn spare so the trailer looks finished behind your Jeep.
Why a universal, size-based cover fits a trailer spare
Here is the part that trips people up: our spare tire covers are not vehicle-specific. They are universal and size-based, so they fit any externally mounted spare based on the tire's overall diameter, not the badge on the trailer. A tongue-mounted teardrop spare, a rear-mounted pop-up spare, and a swing-out overland spare all take the same cover as long as the diameter matches.
That is a real advantage for a matched setup. If your trailer spare is the same size as your tow rig's spare, you can dress both in the same design and the whole convoy reads as one build. Measure the mounted tire, match it to the chart, and order. Our tire cover size guide walks through exactly how to measure, and you can browse designs in the spare tire cover collection.
A quick note on materials and honesty: these covers are custom printed to order and manufactured overseas, not made in our South Carolina shop. They use a durable, UV-resistant print on a nylon-and-polyester blend with a drawstring back that slips on without tools. They take 10 to 14 business days to manufacture, and orders over $59.99 ship free. For keeping a cover looking good over the long haul, our guide on what actually weatherproofs a tire cover is a good next read.
The overland-plus-towing crossover
A lot of the folks asking about trailer spares are Jeep owners first and trailer owners second. They already run a covered spare on the tailgate, and now they are towing a pop-up or teardrop for longer trips. Extending the same thinking to the trailer is easy: a dedicated full-size spare, a mount that clears the hatch, and a size-matched cover so the trailer doesn't look like an afterthought.
If your trailer is a larger hard-sided camper or motorhome rather than an overland-style trailer, the mounting hardware and sizing are a bit different. We cover that separately in the RV spare tire mount guide and the RV, camper, and trailer spare tire cover guide, so this piece can stay focused on overland-style trailers.
Related reading
- Tire cover size guide: measure once, order the right diameter.
- Spare tire cover collection: universal, size-based designs.
- RV spare tire mount guide, for larger hard-sided campers and motorhomes.
- RV, camper, and trailer spare tire cover guide.
- Weatherproofing your tire cover: what actually works.
Frequently asked questions
Does an off-road trailer need its own spare tire?
Yes. Once your tow vehicle uses its own spare, you have nothing left for the trailer, so a dedicated full-size trailer spare keeps you moving. Many overlanders go a step further and match the trailer's wheels and tires to the tow rig, so the two spares are interchangeable, and you can rotate tires across both. Community builders on Expedition Portal and Overland Bound routinely spec matching sizes for exactly this redundancy on remote trips.
Where does the spare tire mount on an overland trailer?
It depends on the trailer, but there are three common spots. Many teardrops and pop-ups carry the spare on the tongue or A-frame up front. Utility and adventure trailers often mount it flat on the rear or on the rear cargo rack. Larger overland trailers frequently use a swing-out or pivot arm so the spare swings clear of the rear hatch or kitchen. Purpose-built carriers from brands like Overland Vehicle Systems are rated to hold full-size tires up to about 35 inches.
Should my trailer spare match my tow vehicle's tires?
Matching is the popular choice for serious overlanders because it gives you interchangeable spares and lets you rotate tires between the rig and the trailer to even out wear. It is not mandatory, and plenty of lighter campers run a smaller trailer-specific spare to save weight and space. If you tow far off pavement, matching is worth considering; if you stay closer to home, a right-sized trailer spare is perfectly fine.
Will a spare tire cover fit a trailer spare?
Yes. Our covers are universal and size-based, so they fit any externally mounted spare, including trailer spares on a tongue, rear mount, or swing-out arm. You order by the tire's overall diameter rather than by vehicle, which is why the same cover works on a Jeep, a teardrop, a pop-up, or an adventure trailer. Measure your mounted tire and match it to the size chart.
How do I know what size cover to order?
Read the size printed on the tire sidewall, or measure the overall diameter of the mounted tire from edge to edge. Then match that number to our size chart. Because the covers are size-based and not vehicle-specific, that single measurement is all you need. Our tire cover size guide walks you through it step by step.
Are your spare tire covers made in the USA?
No. Our spare tire covers are custom printed to order through our print-on-demand partner and manufactured in Vietnam, then shipped to you. The artwork is designed in-house, and the covers use a durable, UV-resistant print on a nylon-and-polyester blend with a drawstring back for a tool-free install. Covers take 10 to 14 business days to manufacture, and orders over $59.99 ship free.
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