Tyre Terminology Explained

Striving to find replacement tires or buying tyres online can certainly be a minefield of confusion terminology and technological terms. It can become a lttle bit overwhelming, and you may feel too ashamed to ask for data in person at a garage. Fear not! Below are the most frequent terminology, described in a language anyone can understand: compare tyres

Aspect Rate – This means the between the tyre’s thickness and height of the sidewall (which is, as you might expect, the side of the tyre). The higher the rate, the ‘taller’ the tyre is. A higher aspect ratio produces a more stable ride and supplies better grasp on snow. A lower aspect ratio usually comes with ‘low profile’ tires which might be used on high-performance cars – they have excellent handling and grip, but can also leave you with a harsher ride.

Contact Spot – The contact area is the small section of your tyre’s stand that actually makes connection with the road at any one moment. Sport tires are much wider, and so do a bigger contact patch, that gives them extra grip when handling and faster acceleration. 

Treadwear indicators – Also called ‘wear bars’, these are the limited bands or ‘bridges’ that go between the take on your tyre. When ever your tread wears down, they commence to become visible, giving you a visible indication that your tyres need to be replaced.

Speed Rating – If you look privately of your tyre, you will see a complete load of symbols and digits. The speed score is the letter that always comes towards the end with this data and refers to the ideal accelerate your tyre has the ability to of. Just about all current models of family car have a velocity rating of S or T (allowing for top speeds of between 112 and 118 mph). Excessive performance cars may have higher ratings, such as V or ZR (allowing for increases to and above 149 mph).

Optimum Cold Inflation Load Limit – Slight mouthful, but all this means is the maximum load that the tyres are in a position of carrying, and the maximum air pressure required to support it. These details (your recommended cold pumpiing load limit) should have your vehicle’s handbook. Overloading your vehicle and/or under/over-inflating tyres can be dangerous and affect your car’s handling. The ‘cold’ aspect of the terminology relates to the fact that you should always check your tyre pressure when your tyres are cool. Checking them too soon after driving, when they are warm, means that you will get a false reading as temperature will raise the pressure inside the tyre.

Load Index – The load index is the weight capacity of the tyre. You should attempt to use tyres that contain the same load rating as the tyres that arrived with the car, or the index recommended in your vehicle’s handbook. The larger the number, the larger the load it can bring.

Radial and Bias-ply Tires The difference between those two types of tyre will depend on upon the way the cords, or ‘plies’ inside the tyre are placed. Radial tyres are located on most modern cars because they are more gas efficient and offer good handling and heat-dissipation. You might find bias-ply tyres on antique/older vehicles, or on some RVs, however. You must not mix radial and bias-ply tyres on the same vehicle as this will dangerously affect your handling.

Temporary Use Tyres – Often known as ‘space-saver’ tyres, these are less space-consuming than usual extra tyres designed to fit easily underneath your chassis or boot in case there is a level tyre. They’re also much easier to handle than full-size tires. However, most space-savers usually are meant to be used at over 55 your and are only expected to be used to get you from the roadside to a garage area so you can fit a proper replacement tyre.

Treadwear, Traction and Heat Ratings – These are ratings to provide information on the average life expectancy of your tyre, as well as ability to stop on wet roads and desolve heat. The treadwear ranking – a three number – gives you an idea showing how long your tyre should last, although this also is determined by the sort of driving style you have and miles you cover. Traction scores range from AA to C, with C being ‘marginal’ quality. Always ensure your tyres are the minimum traction rating advised for your motor vehicle. And finally, temperature ratings (from A to C) label the tyre’s ability to waste heat when under fill. A lower rating suggest a lower capacity for heat, and mean the tyre is likely to suffer heat-induced failure.

If perhaps you’re ever in hesitation about the ratings and specifications of your tires, always talk to a professional for advice. Buying cheap tyres online can be a great way to save cash, but always buy from reputed companies and refer to your vehicle’s handbook to ensure you are purchasing the right type of tyre for your car.

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