Tyres

How To Read Information On The Tyres?

It is important to know about the tyre classification first before learning how to read the car tyres. The car tyres have their language present on the sidewall. Reading this code could help us understand the car tyres better. Some symbols are easy to decipher, whereas others need a good understanding and referencing indices to decode the important information told via them.

Tyre Decoding

At first, you need to inspect the tyre’s sidewall to find the numerous coding and markings. For instance, the tyre’s sidewall would have something written on it like 214/56 R14.

Barring this code, the other marking could typically have the logo, the name of the manufacturer, approval ratings, directional arrows, inflation pressure, and a few of the other necessary details which we would check later.

  • 214 – This indicates the tyre’s width

This signifies the tyre’s maximum width. From one sidewall to the other, it is quantified in millimetres. The tyre’s width is regularised by its manufacturer based on the type of vehicle. It has a crucial role in the handling, consumption of fuel, and grip of the vehicle and thus needs to be considered while selecting the new set of tyres.

  • 56 – This indicates the tyre’s aspect ratio

The number along with the slash is all a part of determining the aspect ratio. This is measured by the cross-section height of the tyre to the tyre’s width. For instance, 56 signifies the fact that the tyre’s height is the same as 56 percent of the width. In case this ratio is more, the tyre’s sidewall would be longer. The heavy-duty vehicles possess tyres online Scunthorpe with ratios almost up to 95 percent. An increased aspect ratio could affect the handling; however, it offers an increased level of comfort while driving. On the contrary, the cars exhibiting high performance tend to exhibit lesser ratios, thereby ensuring improved handling and lower rolling over the corners. This also affects comfort while driving. Tyre manufacturers try to balance the ratio to offer a good combination of comfort and handling.

  • R – Tyre’s construction

The letter after the ratio indicates the construction of the tyre. Here, the letter R means radial construction. B, on the other hand, would indicate the construction is bias-ply. The tyre’s characteristics can be found out through its construction type.

  • 14 – The diameter of the wheel

This signifies the wheel’s diameter which is of the alloy or rim that is around the car’s tyre. The rim’s size is a big factor in selecting the right tyre for your vehicle.

Other Markings

The other markings include:

  • P – The tyre’s application

This P signifies the passenger here. An LT would indicate a light truck with a load rating that is heavier.

  • 85 – The tyre’s load index

This signifies the highest capacity of the tyre to carry the load. The tyres with low profile have reduced ratings in comparison to the high profile tyres. Having a rating of load that is not right would have serious impacts on the safety levels and could lead to an accident. This index requires regular checking with the weight mentioned in the tabloid of the manufacturer. This weight is measured in kilograms. For example, an index of 95 could carry a load of 690 kilograms of tyres Belton.

  • H – Tyre’s speed rating

This rating is the highest speed of service that the tyre can maintain. This would indicate the tyre’s speed which can be achieved without any kind of failure. These ratings are unique for the tyres on passenger cars and not the light trucks. This is because the tyres marked with LT do not have ratings. The speed rating should be carefully considered before the car is pushed to a limit. This is essential to avoid any mishap.

  • Arrows with direction

A unidirectional car tyre needs to be installed in the forward order. These arrows assist in fitting the tyres in the correct direction. The tyres that are asymmetrical have in or out written as they are required to be installed with a larger tread, half of it on the wall outside for proper operations.

  • Manufacturing date – Some of the tyre manufacturers give the year and month in which the tyre was engineered. Since it comprises rubber, degeneration over time could result in lower tyre quality.
  • Pressures of inflation – The tyres are required to have the proper recommended levels of pressure as it largely impacts the performance of the tyre. Along with this, it could also extend the life of the tyre, fuel consumption, and impact its wearing and tearing.
  • Indicator of temperature – The maximum and minimum range of tyre temperature is mentioned to ensure it does not work beyond or below it.
  • Signature for approval – This signature from the authority ensures that the tyres have passed the inspection test and complies with all the rules and regulations.

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