What is the speed of camshaft compared with that of the crankshaft?

The camshaft typically operates at half the speed of the crankshaft in a four-stroke engine. This is because the camshaft needs to complete one full rotation for every two revolutions of the crankshaft, which is responsible for the engine's power stroke. This relationship ensures that the opening and closing of the engine's valves are synchronized with the movement of the pistons.