Which part of the tire gives us the grip necessary to maintain traction with the road?

correct answer is  tread

Explanation:

solution

when a vehicle is moving on the pavement of road than tired roll over the surface of road that will formed the traction

and traction make grip between vehicle and road and speed will increase so to control the speed and the direction we need tread on the tire to prevent skids and hydroplaning

so correct answer is  tread