Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Why Do New Tires Have Rubber Hair on Them?

Why Do New Tires Have Rubber Hair on Them?

tire hairs

There are little rubber hairs that you see on every new tire. Technically, they are called vent spews, which gives away their purpose for being on the tire. Many people think these hairs play a role in noise reduction or indicate wear but their primary purpose is air ventilation.

Those little rubber hairs are a byproduct of tire manufacturing. In a tire mold, rubber is injected and air pressure is used to force the liquid rubber into all the nooks and crannies. In order for the rubber to completely fill the mold, small pockets of air need to be able to escape.

There are small vent holes in the mold so trapped air can find a way out. When the air pressure forces the liquid rubber into all the orifices, a tiny bit of rubber makes its way out of the vent holes as well. These rubber bits firm up and remain attached to the tire when it's removed from the tire mold.

Though they serve no purpose in your tire’s performance, the tire hairs' presence is an indication that a tire is new. Tires that have been in service for some time, coupled with environmental effects, will eventually wear off the hairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....


Related questions

Q: Helicopter noise, steering wheel vibration. Had CV axles and wheel bearing replaced, but the noise is still there. What's wrong?

Hello, thanks for writing in. This sounds like you have tires that are not wearing correctly due to the alignment is not correct or has not had rotations and the tires have high ridges on the tread. Have the tires...

Q: When I drive a speeds of 25 to 35 the car shakes but if I drive speeds faster than 40 it doesn't shake.

Check the tires for any cupping on the tread. If the tread is cupping, then I recommend replacing the shock absorbers. Also, I recommend having all 4 tires checked for balance and make sure that they are good. A bent...

Q: Q: How do I check the tire pressure?

While checking the tire wear on your car is important, it’s equally as vital that you keep an eye on the tire pressure. While your vehicle is equipped with a tire pressure monitoring system (TPMS), it cannot replace physically checking...