Here we explain the most important markings. For assistance when choosing replacement tyres, contact your Toyo tyre dealer.
![](/images/sidewall/sidewall_asset_dec4_09_2.png?1259957300)
LOAD INDEX
& SPEED SYMBOL
![](/images/sidewall/TireType14_0_car_tires.jpg)
DIAMETER
![](/images/sidewall/TireType13_car_tires.jpg)
RADIAL
![](/images/sidewall/TireType12_car_tires.jpg)
ASPECT RATIO
![](/images/sidewall/TireType11_car_tires.jpg)
WIDTH
![](/images/sidewall/TireType10_car_tires.jpg)
TYRE TYPE
![](/images/sidewall/TireType9_car_tires.jpg)
TREADWEAR, TRACTION,
AND TEMPERATURE GRADES
![](/images/sidewall/TireType8_car_tires.jpg)
DOT TYRE IDENTIFICATION NUMBER
![](/images/sidewall/image-DOT-Full-nolabel.jpg)
MOUNTAIN
SNOW
Tyre Brand
The tyre brand is also often, but not always the name of the tyre manufacturer.
!['Toyo' on the sidewall of a tyre](/images/tyre-tips/swm1.png)
Tyre Tread Pattern
The tread pattern can consist of a name, a number, a combination of letters and numbers or even a combination of a name and letters and numbers.
!['Proxes T1 Sport' on the sidewall of a tyre](/images/tyre-tips/swm2.png)
Tyre Size and Service Description
These two markings are usually located next to each other. The service description is made up of two parts, a load index and a speed rating.
![255(Section Width)/35(Aspect Ratio)R(Casing Construction)19(Rim Diameter) 96(Load Index)Y(Speed Rating)](/images/tyre-tips/swm3.png)
Formula for calculating section height:
Overall diameter - rim diameter / 2
Formula for calculating aspect ratio or tyre profile:
Section height ÷ section width x 100
To ensure suitability of a tyre construction type for your car, contact your Toyo Tyre dealer.