Understanding and Reading Tyre Sizes

by | Apr 13, 2014 | Tyres


How to read Tyre Sizes and other Specifications?


Understanding how to read Tyre Size and markings on the side walls of your vehicle tyres will help you choose the right replacement for your vehicle.

There are several markings, letters and numbers on the side walls of all tyres. These provide information about different specifications of tyres like  Size, Dimensions, Load carrying capacity, Speed rating, composition and capabilities of the tyre.

For example the code on a common fitment for Indian Passenger Vehicles will be similar to:

Tyre Size: 205/65 R 15  95H 

205 indicates the nominal section of width of the tyre in millimetres ( in this case 205 mm)Read Your Tyre Size

65 indicates the aspect ration, a comparison of the tyre’s section heigh and its section width (65 indicates the height is 65% of its width, in other words, the height of the sidewall is 65% of the section width)

R indicates radial ply construction ( Most tyres these days have this type of construction)

16 indicates the nominal diameter of the wheel rim in inches (16 inches in this case)

95 is the load index of the tyre or maximum load carrying capacity of the tyre (95 here represents a maximum load of 690 Kg per tyre) Refer to the Load Index Chart for Tyres here.

V is the speed rating of the tyre, it represents the maximum speed at which the tyre can be safely operated. (240 Kms/hr here)For Speed Rating Index for Tyres chart click here

Other Markings:

TT/TL represent Tube Type or Tubeless tyre respectively.

An arrow shows the direction of rotation for unidirectional tyres.

ISI Mark  confirms that the product meets the Standards prescribed by Bureau of Indian Standards

You will also find the tyre’s manufacturer’s name, Model of the tyre and Manufacturing date for the tyres on the side wall.

For any other information or questions about your tyres email us or call us at 0172 2737453, 0172 5075169