The wet grip rating is particularly important, as tyres with a lower rating may not be suitable for wet roads, and can significantly increase your risk of an accident. Which? are an Introducer Appointer Representative of Optimise Media Limited (FRN 313408), for the introduction of HSBC Group, who are authorised and regulated by the Financial Conduct Authority to provide credit brokering activity. Optimise Media is registered in England and Wales to Exchange Street Buildings, 35-37 Exchange Street, Norwich, England, NR2 1DP and company number 04455319. Which? Limited is registered in England and Wales to 2 Marylebone Road, London NW1 4DF, company number 00677665 and is an Introducer Appointed Representative of the following:

Tip: There is no such thing as over-cleaning. If you want your tyre letters to last the lifetime of the tyre, preparation is the key.

White Tyre Pen Marker

With our whitewall tire lettering service, you can easily add the top-notch white walls appearance to your car tires. These tire decals are available for a wide variety of tire brands and different sizes based on the size of your tyres. SSR’– Tyres with this sidewall marking are ‘Self-Supporting Run-flat’ tyres that can continue to be used in the event of pressure loss thanks to its reinforced walls. The brand who manufactured the tyre will be displayed clearly. This is often the largest piece of writing on the tyre. 2. Pattern Name Now you know how to read tyre markings, you can find more information on how to choose the best tyres for your vehicle with our dedicated guide. TWI’– You may find these letters in the grooves to the tyre treads, instead of the sidewall. ‘TWI’ stands for ‘Tyre Wear Indicator’ and if you can see this marking clearly it means that your tyre is pretty worn and needs changing.

As well as being a handy comparison tool, the label gives manufacturers an incentive to produce better tyres. This has worked for domestic appliances, where the level of improvement has led the authorities to re-evaluate the rating scales. The fourth and fifth digits of the tyre code that immediately follow the tyre width. The aspect ratio or profile height of the tyre sidewall is expressed as a percentage of the tyre width. So an aspect ratio of 55 for example means that the profile height of the tyre is 55% of its width. Radial The first three digits. This displays the width of the tyre in millimetres. A tyre marked 225 will measure 225mm across the tread from sidewall to sidewall. Aspect ratio The label is applied to all new tyres, whether they’re fitted to a new car or when bought as aftermarket replacements. The speed rating of a tyre shows you the top speed that the tyre can safely be driven at. It’s a legally approved limit and tyres are only rated after they’ve been tested in a lab. The safest top speed applies as long as the tyre isn’t being driven with too much weight loaded.member pricing on all motoring products and services online and across our stores, garages and Halfords

Also, the external noise is also important, as tyres with a higher rating will be noisier than those with a lower rating. This is a measure of the tyre’s rolling resistance, or the amount of energy that is lost when a tyre is rolling – normally due to the constant deformation of a tyre as you drive. A tyre with lower rolling resistance requires less energy to roll, will provide better fuel economy and will have a higher energy rating. It’s important not to go over the maximum load as it could be dangerous. The tyre speed rating won’t be accurate and it could affect the way the tyres perform and handle. Our kits are supplied “do it your self” ready and does not require a technical skill set to install.

How to read your tyre size

Where your tyre was manufactured will be indicated by the writing on the sidewall. In this example, the tyre was manufactured in the United Kingdom. 4. Tread Wear Indicators

Tyre roar – the noise made by a tyre against the road surface – is a critical factor in a car’s cruising refinement, and also its environmental impact. Select a suitable area as per your decal size. Select an area which is comparatively smoother (with minimum markings). Tyre name or pattern name– The tyre is likely to have its own product name as a marking too, denoting what product range it comes from or the type of tread pattern it has. In reality, braking distances also depend on a host of additional factors, but industry analysts have estimated that using grade A tyres over grade G ones can result in a 30% shorter stopping distance.

What does tyre labelling mean in the real world?

There is no reason to buy tyres with a speed rating that exceeds your car’s top speed. They’ll cost more for no benefit. Elsewhere on your tyres you will see the manufacturer’s name, the name of the tyre model and information about where and when the tyre was made. Exterior noise levels are split into three categories and the figure is the noise level measured in decibels (dB). The curved bars on the tyre icon show the tyre’s noise emissions compared with European Union regulations.