A typical monster truck has four wheels.
Monster trucks began as modified pickup trucks and evolved into purpose-built vehicles with tubular frames, fiberglass bodies, enormous tires, and long-travel suspension. Although their wheels are dramatically larger than those on ordinary vehicles, the basic four-wheel layout remains familiar.
The phrase “four-wheel steering” can cause confusion. It means that both the front and rear wheels can turn to help the truck maneuver; it does not mean the truck has eight wheels. Most competition trucks use hydraulic steering at both axles, giving drivers tighter control in arenas and during stunts.
Monster trucks are also commonly described as four-wheel-drive vehicles, meaning engine power can reach all four wheels. Wheel count, steering capability, and drive system are separate features. A typical competition truck may stand about 12 feet tall and use tires roughly 66 inches in diameter, but it still rolls on four wheels.