What are the red spots and yellow spots on the new tires for? Which valve should I point to? Is the red dot a sign that this face is facing outwards?

The red dot represents the heaviest position of the tire, and the yellow dot represents the lightest position of the tire. The gas nozzle should point to the yellow point. The red dot is this outward-facing sign.

1, the red dot represents the heaviest position of the tire ... the yellow dot is the lightest position of the tire. The reason why there are these two signs is that tire installers can know the heaviest and lightest positions of tires more accurately, and these two points are also the most basic knowledge to learn before installing tires.

2. After installing the new tire on the rim, the professional tire installer will aim the red dot at the valve of the rim. Because the valve is the lightest position of the rim, it is necessary to aim the red dot at it to complement each other. In general, yellow spots don't need attention. Finally, a certain weight of air is injected into the tire. Finally, complete the dynamic balance.

The function of the valve is to inflate and deflate a small part of the tire and keep the tire sealed after inflation. Ordinary valves consist of valve body, valve core and valve cover.

4. The tires sold in regular channels have the following characteristics: the label is complete, the certificate is attached to the label, and the side of the tire has a complete bar code, while the tires sold in informal channels have the following characteristics: the label has no certificate or the certificate is worn off, and the bar code is worn off.

There is a red dot and a yellow dot on each tire. If you look closely, you will find that the red dot is solid and the yellow dot is hollow. So what are the meanings of these two points? What should I pay attention to when installing new tires? The solid red dot is the position with the greatest longitudinal stiffness of the tire. Frankly speaking, the solid red dot is the point where the tire vibrates the most every turn. If the vibration value is too large, the tire will vibrate, so a good manufacturer will not let the new product leave the factory if it comes out for testing and finds that the vibration value exceeds the standard. This red dot means little to the sales department and users, because they can't know its value.