The shape of the tread of the motorcycle tyre determines its drainage ability and the ability to place other debris, as well as its grip performance.
The less tread, the better performance of the grip, because the grooves in these tread are not able to contact the ground to gain grip. On rainy days, the tread breaks the water effectively and then leaves it. The tyres can better touch the road to better grip.
It's important to choose the right tread. There are ten kinds of tread in the same specification, and the appropriate tread should be chosen according to the different road conditions.