why are treads on tyres
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treads on tyres are the ridges which increase the roughness of the tyres and provides more friction and grip so that the vehicle doesn't slip on wet or fine gravel paths
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The grooves in the rubber are designed to allow water to be expelled from beneath the tire and prevent hydroplaning. The proportion of rubber to air space on the road surface directly affects its traction. Design of tire tread has an effect upon noise generated, especially at freeway speeds.
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