Question

Why are handles of motorcycles coverd with a rubber sheet having spikes on it?

Answer 1

As to use the handle you should have a grip over it. While using the handle it should not slip that's why a rubber spiky cover is applied on handle of motorcycle

Answer 2

Answer:

Handles of bikes and scooters are covered with rubber because rubber increases the grip between hand and the handle so it is used on the handles of bikes and scooters