After careful observation, we all know that there is an "inside" logo on the tire. Many people think it is the brand, specification or model of the tire, but it is not.
This logo tells you that the side with it on the big truck tires should face outward. If you see it outside, it means that the tire of the truck is installed inside out, which makes the driving uncomfortable and the tires wear a lot.
"Dot XXXX" on big truck tires means that this tire has passed the standard certification of the Federal Department of Transportation. Without opening the tire, there is a group of numbers on one side of the tire wall outside the tire. The information of the production date can be obtained from the last four digits of the sign, which is composed of four digits "AABB". The first "AA" indicates the week of the year, and the last "BB" indicates the year.
The solid red spot is the position where the longitudinal rigidity of mining truck tyres is the largest, which means that the tire vibrates the most when it rotates for one revolution. When the vibration value is too large, the tire will vibrate. Hollow yellow spot, also known as light dot mark, indicates that this part is the lightest place on the whole circumference of the tire.
If you need more tire-related information, you can contact professional tire manufacturing companies for consultation.