Carmakers dropped spare wheels to save weight, boot space and cost. That leaves drivers to rely on other solutions. Here is how each compares.
Full-size spare
A full-size spare, matching the other wheels, is the most convenient and gives you normal driving afterwards. Check its pressure often, and its age; see DOT code guide. Make sure the jack, brace and locking nut key are with it. Changing a wheel yourself can be dangerous on a busy road, so it is only sensible on a safe, level surface.
Space-saver spare
A narrower, lighter temporary wheel. It is meant to be used for a short distance at a limited speed, often 50mph, as marked on the wheel. Handling and braking change, and it may not suit all systems, such as electronic stability control. Replace it with a proper tyre as soon as possible. See can you drive on a flat tyre.
Tyre repair kit (sealant and compressor)
A bottle of sealant and a small compressor seal small holes in the tread. It is quick, needs no lifting and can be used in a tight spot. But:
- It does not work on sidewall damage or big holes.
- It is a temporary fix, with limits on speed and distance.
- Sealant has an expiry date.
- The sealant can interfere with a TPMS sensor and make a proper repair more difficult. Tell the fitter you used it.
Run-flat tyres
Run-flats let you keep driving after a puncture, typically up to around 50 miles at up to 50mph, according to the maker. You need a pressure monitoring system to know when you have a puncture. They are often not repairable after being driven flat. See run-flat tyre puncture and run-flat pros and cons.
No spare at all
Some cars come with neither a spare nor a kit, relying on breakdown cover. In this case, plan ahead: know who to call. A mobile tyre fitter can come to repair or replace the tyre where you are, which is often better than a tow. See emergency tyre fitting and mobile tyre fitting.
Which is best?
There is no single best answer. A full-size spare gives the most flexibility; run-flats give the best immediate safety. A repair kit is light and quick but limited. If you drive long distances, tow, or live somewhere remote, consider carrying a full spare where your car allows it. If you do a lot of motorway driving, the speed limits of a space-saver and a repair kit are worth bearing in mind.
Checks to do now
- Find out what your car has and where.
- Check the spare's pressure and age.
- Check the repair kit's expiry date.
- Find your locking nut key; see lost locking wheel nut key.
- Save a breakdown and a tyre fitter number in your phone.
See what to do after a puncture for the sequence of actions. We cover areas such as London, Croydon, Reading and Leeds; see the areas list. Call now for a quote on 0800 772 0355 or book now.
Costs, weight and the trade-offs
Dropping the spare saves weight, which helps fuel economy and emissions, and frees boot space. Run-flats add cost and a firmer ride. A full spare adds weight but gives the most freedom. Each choice shifts the burden: with no spare, you depend on a repair kit or on outside help, and that means planning ahead. If you drive remote roads, it is worth checking whether your car has space for a proper spare, and whether a retrofit is possible.
Using a space-saver correctly
Fit the space-saver to a non-driven axle where possible, keep the speed under the marked limit, and avoid motorways. Check the pressure, which is often higher than on standard tyres, and do not use snow chains or put it on the wheel with locking nuts without checking the fit. Replace it with a full-size tyre as soon as you can, and put the spare back into the car afterwards so you do not forget.
Frequently Asked Questions
Is a repair kit as good as a spare?
It is a temporary fix for small tread holes, not a substitute for a proper repair.
How fast can I go on a space-saver?
Check the wheel; it is often limited to about 50mph.
Can I use sealant then get the tyre repaired?
Sometimes, but tell the fitter, as sealant complicates repair.
My car has no spare. What now?
Call a mobile fitter or breakdown service. Call now for a quote on 0800 772 0355.
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