Every motorist has noticed colored dots and stripes on the tires at least once. But not everyone fully understands why these designations are needed at all. For this reason, a large number of myths and conjectures appear around the mysterious symbols, which have very little to do with reality. It's time to sort this out once and for all.
What kind of rubber the tires are made of? A defective batch that went on sale for some reason? Guaranteed substandard? What absurdities did not come up among the people around the colored dots and stripes on the wheels. The most attentive may have noticed that the strip always goes around the circumference of the tire, and its paint never gets into the grooves. So what are all these symbols for?
Colored stripes are applied in the production shop on wet tread rubber so that during further work on the tire, all technological procedures are correctly carried out. Including assembly and vulcanization. Strips are applied before the tire enters the mold. The paint never gets into the tread channels due to the fact that its pattern is created by the press after the paint has been applied. As a result, the machine simply cuts through the markings.
This is where the color stripes function ends. After production, all tires are sent to warehouses, where they are assembled in huge lines. There, colored stripes help warehouse workers determine the type of tires before shipping the goods. It is much easier and faster to recognize the required product by a specific color strip than to peer into the tread pattern every time.
The third time, the colored stripes on the tires can help the buyer. Since they can easily identify products from the same series. This is very useful, as the markets often try to sell tires of different ages and even places of production as one set. Comparing the stripes on all four, it becomes immediately clear whether this is really so.
A separate point is the colored dots on the tires. White or yellow always indicates the lightest segment of the tire. They are always placed on the outside of the product. This is necessary in order for the tire installation to be carried out correctly. Namely, the yellow dot should be located next to the valve, which naturally makes the wheel heavier. If mounted in accordance with the rules, then when balancing, you will need to use fewer weights.
You can also see red dots on the wheel. With its help, the place with the largest radius is indicated. The fact is that tires are far from always perfect and almost all products will have some part of the tread slightly higher. Experienced tire fitters know about this and will try to match the specified point with the smallest radius on the disc. This is necessary to reduce the runout of the wheel.
If you want to know even more interesting and useful things, then you should read about on which axis to put more erased a pair of wheels.