Is It Normal for New Car Tires to Have No Rubber Hairs?
3 Answers
Normal. Rubber hairs are small rubber burrs on tires, known as "little braids" in the industry, caused by vent holes in the tire vulcanization mold. Nowadays, technologically advanced tire manufacturers have already resolved this issue. More details about tire rubber hairs: 1. Rubber hairs do not increase tire noise: Tire noise mainly occurs when the vehicle is driving at high speeds, and the tire rotates rapidly, compressing and releasing the air within the tire treads. This continuous "compression-release" process generates noise. The faster the speed and the heavier the vehicle, the greater the noise. Under such high-speed rotation, the effect of rubber hairs is negligible. 2. Rubber hairs do not enhance grip: This is only theoretical. If the tire surface has rubber hairs, it may make the surface rougher, theoretically increasing friction. However, the tiny rubber hairs contribute insignificantly to the tire's overall friction. 3. Relationship between rubber hair length and tire quality: The length of rubber hairs depends on the equipment and manufacturing process used to make the tire. The length of rubber hairs cannot be used to judge the quality of a tire, and rubber hair lengths vary among different tire specifications and models.
I recently bought a new car, and when I picked it up, the tires looked completely bald at first glance, without any tire hairs. Initially, I thought they might be retreads or defective. Later, after checking online and consulting with some mechanic friends, I learned that this is actually quite normal. Modern tire manufacturing processes have improved, with more precise molds that reduce excess rubber residue, making tire hairs less common. In fact, those hairs are just tiny strands left from the casting process and serve no practical purpose. Their absence actually makes the tire surface smoother, leading to a quieter and more comfortable ride. The key isn’t to obsess over this but to regularly check if the tire pressure is up to standard to avoid uneven wear. If your new car’s tires don’t have hairs, you can drive with peace of mind—as long as there are no other issues like cracks or bulges. My takeaway is: don’t scare yourself unnecessarily; tires undergo strict quality checks before leaving the factory.
As a car enthusiast, I'm quite familiar with tire manufacturing details. The so-called 'tire hairs' are actually small rubber protrusions resulting from material overflow during the mold cooling process. However, manufacturers have optimized production techniques nowadays, employing automatic trimming and precision molds to reduce or even eliminate these hairs, thereby improving environmental efficiency and aesthetic quality. It's perfectly normal for new cars to lack these hairs - this actually demonstrates technological progress. When purchasing a car, I never worry about this aspect, focusing more on tire specifications like traction ratings and tread pattern design. I recommend that car owners rotate their tires regularly according to driving habits to extend service life. The absence of tire hairs eliminates cleaning hassles, provides smoother driving, and has no negative impacts.
