Modern cars handle spare tyres in very different ways. Some still carry a full-size spare in the boot. Others use a compact space saver spare with speed and distance restrictions. Many new cars — especially electric and hybrid models — have removed the spare entirely, supplying a tyre repair kit instead. Understanding what you have and how to use it is essential.
A full-size spare is the best option. It is identical to your other tyres and can be driven normally without speed restrictions. However, full-size spares take up significant boot space and add weight, which is why many manufacturers have moved away from them.
A space saver spare — sometimes called a skinny spare or donut — is a narrow, lightweight emergency tyre designed to get you to a garage. It has strict limitations: typically 50 miles maximum distance, 50 mph maximum speed, and must be fitted on a non-driven wheel if possible. Space saver tyres are for emergency use only and should be replaced with a proper tyre as soon as possible.
Tyre repair kits contain a compressor and a can of sealant. You inject the sealant through the valve and inflate the tyre with the compressor. These kits are messy, often ineffective for larger punctures or sidewall damage, and can damage the tyre beyond repair. They are a last resort, not a proper solution.
If you have a flat and are unsure about using your spare or repair kit, the safest option is to call Tayside Mobile Tyres. Our emergency tyre fitting service means you do not need to struggle with a heavy wheel on a muddy verge or fumble with sealant in the dark. We come to you and fit a proper replacement tyre.
For drivers who want peace of mind, consider having a full-size spare fitted if your car currently uses a space saver or repair kit. We can source and supply the correct wheel and tyre for your vehicle, giving you a proper backup for long journeys or remote driving.
Whatever spare system your car uses, never drive long-term on a space saver or repaired tyre without having it properly inspected and replaced. For spare tyre fitting, space saver advice, and emergency replacement in Dundee, call Tayside Mobile Tyres.
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