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Hankook Tire & Technology-Help & Support-Tire Guide-Tire Sidewall

Tyre Guide

Tyre Sidewall

A tyres sidewall protects the carcass on the inside and provides a comfortable riding experience due to its flexibility during cornering. The type of tyre, size, structure, tread pattern, manufacturer, brand name and other detailed information are marked on the sidewall.

* Click the buttons to see the names and functions of each part.

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Brand Name

Product Name

Tyre Size

Safety Warning

UTQG

Place of Introduction

DOT

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DOT(Department of Transportation)

Hankook Tire & Technology-Help & Support-Tire Guide-Tire Sidewall-DOT(Department of Transportation) Hankook Tire & Technology-Help & Support-Tire Guide-Tire Sidewall-DOT(Department of Transportation)

UTQG(Uniform Tyre Quality Grading)

Treadwear

Each tyre shall be graded for treadwear performance with the word ‘‘TREADWEAR’’ followed by a number of two or three digits representing the tyre’s grade for treadwear, expressed as a percentage of the NHTSA nominal treadwear value. Treadwear grades shall be expressed in multiples of 20 (for example, 80, 120, 160).

Traction

Each tyre shall be graded for traction performance with the word ‘‘TRACTION,’’ followed by the symbols AA, A, B, or C. They represent the tyre's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete.

Temperature

The temperature grades, from highest to lowest, are A, B and C.These represent the tyre’s ability to dissipate heat under controlled indoor test conditions. Any tyre rated below C is considered unacceptable.

Tyre Size

  • Tyre spec notation varies according to car model but primarily consists of symbols and numbers denoting tyre width, aspect ratio, diameter, load index and speed symbol that indicate tyre performance.

Place of Introduction

  • This indicates the region where the tyre was manufactured.

Safety Warning

  • This indicates important information related to tyre use.