in case of f1 cars the road surface is even and it does not consists of stones and pebbles and also f1 has to maintain a high grip with road surface but in case of ordinary tyres they r to be driven in rough areas n also surfaces which r uneven so to adjust itself and balance vehicle at variable speeds in such uneven surface .
hence many times v see small atones suck into the grooves
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∙ 12y agoso they can have more traction
You should change tires when you look at the grooves and they are ground pretty smooth. You want grooves in your tire so that it has good traction. If you put a nickel in-between your grooves and it doesn't stick out, then your tires are still good.
Car tires cover the wheel rim. They are made of rubber with grooves to provide traction and act as a cushion to absorb the shock from large bumps or jolts.
Deeper grooves improve traction for off road use but are noisy when on road use.
When it rains, cars sometimes hydroplane because the water underneath the tires supports the weight of the car and causes it to loose traction. Grooves give another channel for water to escape. As for off-road cars, the tire grooves are not much deeper rather they are larger and have more room to go up and down. In my Jeep Wrangler, the tire grooves are the same depth as an Acura TL and a Honda minivan. Maybe on other off-road cars they help the car travel through gravel, rock, sand, and snow to gain more traction.
To increase friction
Because they have to get a grip in mud, grass and soft ground in general.
Why would you? They're your tires, you bought them.
So the water you drive through will be channelled through the grooves to prevent aquaplaning.
Tires need the grooves to be able to get a grip when weather is not the best. They provide a place for water, ice and snow to go and allow the rubber tread to make contact with the road. Racing cars often use tires with no grooves at all, but the weather has to be dry and the pavement clean. On a passenger car, even a little water can cause hydroplaning, where the tire is on water rather than the pavement.
BF Goodrich have the traction T/A ,Racing tires are specially fornulated rubber, some have grooves cut into them for added friction,their are also chemicals that could be sprayed on for temporary traction.
Race cars use tires with no grooves (or 'Slicks') as they provide the most surface area contact with the road which provides the most grip. More grip = more stability. The slicks are only used when the track is dry enough as they will not clear away water, they are more likely to lose contact with the track and hydroplane/aquaplane, which will cause a loss of grip. In Formula 1 when the track becomes too wet for slicks they will change tires to either Intermediate or Wet tires which feature different depth grooves for driving on a wet track. A road car cannot use slick tires as it must be suitable for driving in any condition at any given time, plus all 4 tires of a Formula 1 race car can be changed in a little more than 2 seconds, I doubt you'd be able to manage that with a road legal vehicle.