Eli5: why some racing tyres are slicks and working better than thoses with grooves but road car tyres works the opposite way??
In: Engineering
Because race tracks are clean dry asphalt. The grooves in tires allow water to pass through a bit allowing the parts that stick out to make good contact with the road when it rains. Slick tires in the rain wind up hydroplaning almost instantly making them very dangerous.
When cars are raced in the rain they swap out for grooved tires.
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