What are winter tyres?

More grip in cold and slippery conditions without the need for four-wheel drive: how winter tyres will keep you on the road

BuyaCar team
Oct 14, 2019

Many drivers assume that the safest way to travel during winter months is in a large four-wheel drive car. However, when temperatures are low, roads are often wet and from time to time covered in snow, winter tyres not only help you get going, offering more grip when pulling off - the main benefit of four-wheel drive - but they also provide extra grip when cornering and coming to a stop.

This means for the greatest safety in winter, having a set of winter tyres fitted could make more of a difference than going for a four-wheel drive car and leaving it on ordinary summer tyres all year around. With four-wheel drive systems adding cost to the purchase price of a car and reducing fuel economy due to the extra weight and complexity, simply getting a two-wheel drive car and fitting winter tyres could save you a considerable amount, too.

Not only do winter tyres boost grip in snow, they are designed to offer more grip in wet and icy conditions, making tackling treacherous roads during the winter months a much safer prospect. They aren't magic though, so even with four brand new winter tyres fitted to your car, a large dose of caution will still be necesary.

 
Above all, though, if you do fit winter tyres, make sure to fit four winter tyres, rather than just two to the powered wheels. That's because fitting just two means that the front and rear of the car would have different levels of grip, so in cold or snowy conditions the wheels with winter tyres fitted would grip, but the others wouldn't, which could result in the car spinning as you turn.

Read on for more details on winter tyres, or alternatively check out our guides to driving in flooding and how to drive in snow plus the best cars for dealing with floods and the best cars for snow. And if you want to be truly unstoppable on the roads this winter, choose one of those cars and get winter tyres fitted.

What are winter tyres?


Most cars in Britain use standard tyres, also referred to as ‘summer’ tyres, all-year round. These are great when temperatures are high and the rubber provides good grip and control. However, when the temperature drops, the rubber becomes harder, offering less grip on cold roads and struggling significantly on snowy or icy surfaces.

Meanwhile, winter tyres are made of a special compound that remains softer, and therefore grippier, at temperatures below 7C, which is not unusual in the UK’s winter months. They are less effective at higher temperatures, and so for the best grip across the whole year, it's worth switching back to summer tyres when the weather warms up.

Winter tyres also have different grooves that perform better than standard tyres on snow and ice. Winter tyres are indicated by a snowflake or snow-topped mountain symbol on the side. When shopping for tyres, be aware of the difference between dedicated winter tyres designed to work very well in cold temperatures and all-season tyres, which cope a little better in warmer temperatures, but as a result, can't compete on cold roads.

Do winter tyres work?

TyreSafe, a not-for-profit safety organisation, reports that tests conducted by the British Tyre Manufacturers’ Association found that a car fitted with winter tyres can brake from 60mph on a wet road at 5°C a whole five metres shorter than one on summer tyres - equivalent to more than one car length. This means that winter tyres offer safety advantages on cold roads, even when there's no sign of snow.

However, the reverse was true in warmer conditions, as the car fitted with winter tyres required almost two metres more to stop at 20C compared with the same model fitted with standard tyres. Consequently, it's wise to have a set of each, changing when the temperatures plummet as winter arrives and in spring when warmer weather comes.

This may sound like an extra expense - and if you buy another set of wheels to put the tyres on, it is. However, remember that with two set of tyres each set will last twice as long, so the main cost to think about is any garage charges for swapping your tyres over twice a year.


Is fitting winter tyres compulsory?

In a number of countries that typically have cold, snowy winters, it's compulsory to fit winter tyres over the colder months. This is to boost road safety, with winter tyres offering improved grip and shorter braking distances in cold temperatures and reducing the rate of crashes.

As a result, in some countries having winter tyres fitted is a legal requirement between certain dates, or when temperatures are below a certain level. For example, in Austria, your car must be fitted with winter tyres between 1 November and 15 April.

By contrast, in the UK, where winters are generally less severe, winter tyres are not mandatory. The AA believes that especially in remote areas, where road gritting is less frequent, winter tyres ‘make sense’, however.

So regardless of the law, it's worth thinking about whether you need winter tyres, by considering the type of roads you drive on, the car you're using and how many essential journeys you make in cold conditions. If you live in a city and never leave the house in the car if it's snowy or raining heavily, you're likely to cope much better without winter tyres than someone who lives on a hillside in the countryside and has to commute 60 miles to work every day, come what may.

Fitting winter tyres


Fitting winter tyres is not a difficult process insofar as it's an identical process to a the standard act of fitting new tyres to your car. Winter tyres will be stocked by virtually every garage and the process of putting them on your car requires no extra work. 

Generally speaking, winter tyres will be slightly more expensive than your typical summer tyres. With winter tyres being more widely stocked than in previous years, in some cases there is little or no difference in cost for similar summer and winter tyres, but you may have to pay 10-20% more for winter tyres with other models.

Bear in mind if you decide you'd like the safety net of winter tyres, you will have to get four rather than fitting just two to the powered wheels. Whereas with standard tyres you can opt to replace just two tyres at a time - provided the other two are a similar type of tyre - winter tyres must be fitted as an entire set, as the extra grip they offer will be magnified in poor conditions, causing your car to be thrown off balance and much more likely to slide if only one end of the car has winter tyres fitted.

You can fit these tyres to your existing wheels, although remember that you'll have to store your summer tyres somewhere. Alternatively, you can have winter tyres fitted to cheap steel wheels, but make sure these are compatible with your car's wheel nuts, otherwise you'll be left with no wheels on your car at all.

If you'd like similar wheels to what's on the car already, you can always splash out on another set of alloy wheels from the manufacturer, though this can be expensive - especially if your car has particularly big wheels.

Is it possible to store my old tyres?

If your garage is big enough, it’s fine to store them there without any adverse effects, as long as you protect them from damage. The last thing you want is to find they're no longer fit for purpose when you come to re-fit them in the spring. 

Some tyre fitters provide an alternative to storing wheels yourself with a so-called ‘tyre hotel’ service. As long as you buy your winter tyres from them, they’ll store your standard tyres either free or for a charge of around £5 per tyre. 

Will fitting winter tyres affect my car insurance?

The Association of British Insurers (ABI) says its members recognise that winter tyres can make a positive contribution to road safety and as a result, most insurers will not charge an additional premium.

Some may, however, so to help motorists negotiate this potentially confusing topic, it has published a guide to insurers’ individual positions here. The one clear stipulation is that winter tyres must conform to the car maker’s specifications.

 

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