Why should you replace your tires when the threading is low?

Question

NASCAR races are always cancelled when it is raining due to safety concerns for their drivers. one of the main reasons for this is because these racing cars have no threads on their tires. why do they need to cancel a race bacause of this?

Answer 1

because the tread pattern is what allows the water to be channeled away and allow the rubber to touch the road. With slicks on a racecar there is no way for the tire to displace the water and the tire will rise up on the water losing contact with the road. The tread pattern has only 2 functions Primarily to channel water out of the way and secondly to cool the rubber if it gets too hot.

Answer 2

Treadless Design

NASCAR tires look completely bald, but that's not because they are worn out. It is by design. On a dry track, tires can generate more traction if more of their sticky rubber is in contact with the ground. Putting a tread pattern on the tire helps in wet weather, but in dry weather it is better to have the whole tire touching the ground. That's why NASCAR races stop whenever the track is wet.....................................

http://auto.howstuffworks.com/nascar5.ht...

Answer 3

You know the groves in your tire treads? The rain goes though them so your tire can keep in contact with the road. Ever hydroplane? That happens when you are going to fast or the groves on you tires are to small to keep up with the amount of rain you are driving on and you are driving on the water, not the road. (That is why slowing down stops you from hydroplaning)

When your car has no contact with the road, you have no control over your car.

Answer 4

also, once the tires tread starts to wear and you start seeing wire looking stuff, your tires aren't sturdy enough to hold the weight, etc... of your vehicle and they can go flat, either dramatically or by just a slow leak.  it's dangerous.m kinda like when your socks are so worn out you can start to see right through them around the heel part?  you know it's only a matter of time before it becomes a hole.

Answer 5

NASCAR tracks are asphalt and when it starts to rain the oils come to the surface (that is why safety expersts say that the first 10 minutes of driving in the rain are the most dangerous to drivers-it's even in the state driving manuals).  As pointed out by jeromyks,  the NASCAR tires have no tread (they are slick) and can only get traction due to the heat generated on the tires at high speeds.  The rain cools the tires and so no traction.  It is one of the top safety hazards in NASCAR regulations.

Dr. Tommy Skelton

Answer 6

Threads you wear,     treads your tire wears.

NASCAR  runs on the tires they do to get maximum grip from as much tire surface as possible  at the speeds they run.    These tires are usually completely slick,  sometimes the team will put a few laps on new tires just to "rough them up"  a bit  to get different characteristics.   Stickers are called that because the factory tags are not removed until just before mounted.    Because there are no tread,   the tires are not capable of clearing moisture out from between them and the pavement,   therefore NASCAR cannot run in wet conditions.

You want to have good tread on your tires to provide additional grip and friction at the lower speeds we drive.   Good deep tread will help channel water out of the footprint and give you traction in poor conditions.   Like race drivers,   when you go too fast for this capability,  you will lose grip and slide across the top of the water  (HYDROPLANE).

Answer 7

There is a BIG difference between driving on tires DESIGNED for any weather at, say, 55 or 65MPH and driving at 200+MPH on tires designed ONLY for dry tracks.

Answer 8

Because the tread is what makes the tires have friction on the highway, and without friction and traction, your car would go all over the place, so to prevent this, you replace the tires.

Answer 9

The tires they use in nascar do have tread. The drivers just tend to wear all the tread off them pretty quickly. If it rains, the cars can slide easily, making it very dangerous. You don't want to spin out while going 200+ mph!