In vehicle acrobatics, a wheelie is a vehicle maneuver in which the front wheel or wheels come off the ground due to extreme torque being applied to the rear wheel or wheels. Wheelies are usually associated with bicycles and motorcycles, but can be done with other vehicles such as cars.
History
Wheelies appear in popular culture as early as 1943, as U.S Army motorized
Types of wheelie
Types of wheelies include:
- Clutch wheelies are performed by disengaging the clutch and opening the throttle to let the engine race and then engaging the clutch abruptly.
- Power wheelies are performed by simply opening the throttle. If the engine has sufficient power, it will be able to lift the front wheel.
- Bounce wheelies are performed by opening and closing the throttle in time with rocking the rider's weight back and forth, thus pre-loading the front suspension so that the throttle is opening at the same time as the front suspension is unloading.
Motorcycle
A wheelie is also a common motorcycle stunt. The principle is the same as the bicycle wheelie, but the throttle and rear-brakes are used to control the wheelie while a rider uses body mass and the steering to control the direction the inertia of the spinning front wheel acting as a balance.
Automobiles
Wheelies are common in auto- or motorcycle drag racing, where they represent torque wasted lifting the front end, rather than moving the vehicle forward.
Bicycles
A bicycle wheelie
A variation of the wheelie is the manual wheelie. This similar to a wheelie but no pedalling is involved. The bike is balanced by the rider's weight and sometimes use of the rear brake. A style of bicycle, the wheelie bike, has a seating position, and thus center of mass, nearly over the rear wheel that facilitates performing wheelies.
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