How to Store Spare Tyres Without Damage

A spare tyre is only useful if it is safe to fit when you need it. Whether you keep a full-size wheel in the shed for a ute, rotate seasonal 4WD tyres, or have a space-saver in the boot, knowing how to store spare tyres can prevent cracking, flat spots and unpleasant surprises on the side of the road.

Rubber does not like heat, direct sunlight, moisture or long periods under heavy load. Store your spare properly and it will stay in far better condition between checks. Ignore it for years in a hot shed or under a pile of gear, and it may look fine until the day it matters most.

Check what kind of spare you have first

Before putting a tyre away, confirm whether it is a full-size spare, a space-saver, or a tyre that has been removed from the wheel. The right storage position depends on this.

A full-size spare fitted to a wheel can be stored upright, laid flat, or hung from a suitable wall rack, provided it is supported properly. A space-saver should normally remain secured in its original boot compartment or carrier, as this protects it and makes sure the retaining hardware is not lost.

Tyres that are off the rim need a little more care. They should be stored upright rather than stacked in a tall pile. Stacking unmounted tyres for a long time can distort the ones at the bottom, especially when they are carrying the weight of several larger 4WD or light-truck tyres.

How to store spare tyres in the right place

The best spot is cool, dry, clean and out of direct sun. A garage, enclosed storage room or dry shed is usually suitable. Keep the tyre away from windows where sunlight hits it, and away from heaters, hot water systems, welders or other heat sources.

Avoid leaving spare tyres outside under a tarp. A tarp may keep some rain off, but it can also trap moisture and create a damp environment. Outdoor storage also exposes rubber to changing temperatures, UV rays and dirt. In the Hunter Region, summer heat inside an exposed shed or carport can be hard on tyres too.

Keep tyres away from petrol, diesel, oil, solvents, paint and battery acid. These products can damage rubber over time. It is also smart to store tyres away from electric motors, compressors and generators where practical, as equipment can produce ozone that contributes to rubber ageing.

Clean and dry the tyre before storage

Do not put away a tyre covered in mud, road grime or brake dust. Give it a basic clean with water and mild soap, then let it dry completely. There is no need for harsh cleaners, tyre shine or petroleum-based products before storage. Some dressings can leave residues that are not helpful when a tyre is sitting for months.

Check the tread and sidewalls while you clean it. Look for cuts, bulges, exposed cords, deep cracks or a puncture repair that needs inspection. A spare with serious damage is not a spare you can rely on, even if it still holds air.

If the tyre is on a wheel, check for dents, corrosion around the bead, and damage to the valve stem. Fit a valve cap if one is missing. It is a simple part, but it helps keep dirt and moisture out of the valve.

Store tyres on rims differently from loose tyres

Mounted tyres - tyres fitted to wheels - can be stacked flat in small numbers, hung on a purpose-built rack, or kept upright. If you stack them, keep the stack low and stable. Four passenger tyres are manageable for most home setups, while heavy 4WD, ute or light-truck wheels are safer on a strong rack or placed individually.

For an emergency spare on a wheel, check and set the pressure to the vehicle maker's recommended spare tyre pressure before storage. This is often different from the pressure used in your regular tyres. The correct figure is usually listed on the tyre placard, inside the owner's manual, or on the space-saver warning label.

Loose, unmounted tyres should stand upright side by side on a clean, dry floor. Turn them a small amount every month or two if they will be stored for a long period. This helps reduce the chance of a flat spot forming where the tyre meets the ground. Do not hang unmounted tyres from hooks, as this can place unnecessary strain on the bead area.

If you need to stack loose tyres briefly, do it only for short-term storage and avoid putting heavy items on top. A spare tyre is not a shelf for toolboxes, camping gear or spare parts.

Use tyre bags if storage will be long term

For tyres being stored longer than a few months, opaque tyre bags can provide extra protection from light and dust. Heavy-duty plastic bags work as well if the tyres are clean and completely dry first. Squeeze out as much air as practical, seal the bag, and store it in a dry area.

The bag is there to limit exposure to air and light, not to rescue a damp tyre. If you seal in water or mud, you create the wrong conditions. For a spare sitting in a vehicle's boot, a fitted cover can also stop loose items rubbing against the sidewall.

Do not forget the spare in the vehicle

The tyre in the boot, under the rear floor, or on the back of a 4WD is often the most neglected tyre on the vehicle. It still ages, loses pressure and can suffer damage from heat or weather.

Check a boot-mounted spare whenever you check your regular tyre pressures, ideally monthly and before a long drive. Pull it out at least a couple of times a year so you can inspect the sidewalls, tread, wheel and valve. Make sure the jack, wheel brace, locking wheel-nut key and spare tyre retaining bolt are all there and usable.

A rear-mounted 4WD spare needs closer attention. It is exposed to sunlight, rain and road grime every day. A quality cover helps reduce UV exposure, but it does not replace inspections. Check the cover for trapped moisture and inspect the tyre beneath it.

Space-savers deserve special attention because they are often older than the vehicle's other tyres. They may have plenty of tread simply because they have never been used, but age still matters. Follow the speed limit marked on the space-saver and replace it if it is damaged, badly cracked, or beyond the tyre manufacturer's recommended service life.

Inspect stored tyres before fitting them

When it is time to use a stored spare, do not fit it blindly. Check its air pressure, sidewalls and tread first. Look for cracking, bulges, cuts, nails, uneven wear and signs that the rubber has become hard or brittle. Check the tyre's date code too. The last four digits of the DOT code show the week and year it was made - for example, 2424 means the 24th week of 2024.

Age alone does not automatically make a tyre unsafe, because storage conditions and tyre condition both matter. But an old spare should be assessed carefully, particularly if it has lived under a vehicle, in a hot shed, or exposed on a 4WD carrier for years.

If the tyre is questionable, get it checked before you need it in an emergency. A quick inspection and pressure check is far easier than dealing with a failed spare on a highway, at a worksite or before a family trip.

For drivers around Rutherford, Maitland and the wider Hunter, Uber Tyres can inspect a spare, check its pressure and condition, or help replace it if it is no longer roadworthy. Keep it clean, dry, correctly inflated and easy to access - then it is far more likely to do its job when the unexpected happens.