Mini bike kits allow a hobbyist to build his or her own custom mini bike for racing or recreation. Mini bikes mimic the style of larger motorcycles, so motocross bikes, chopper bikes, or Grand Prix-style mini bike kits are available. Some kits come with all the necessary components to build the bike from the wheels up, though other kits only come with certain components such as the frame, gas tank, and engine. The builder must then seek out other components to finish the project. This allows for more customization and personalization, though it also means more investment of time and effort.
Many mini bike kits come with detailed plans for construction of the bike. The instructions will vary depending on the type of bike being built as well as the type of engine used for the project. Two-stroke gas engines are the most common choice for mini bike kits, though electric kits are available as well. The gas-powered engines usually range from 50cc to 100cc in size, which can allow the mini bike to reach speeds almost equivalent with full size motorcycles. Hydraulic brakes are almost always included in mini bike kits, though cable-actuated brakes can sometimes be used as well. Other options include a choice between a manual transmission or an automatic transmission, as well as a choice among countless tire varieties.
Chopper mini bike kits will mimic the look and feel of a full-sized chopper bike. This means a more laid-back riding position, wider rear tires, and in many cases custom paint jobs on the gas tank and fenders. These types of bike are meant for recreation and show only; they are not street legal, as they are too small to be seen easily by other motorists. Chopper mini bikes are a great choice for around the neighborhood or campground, and kids generally enjoy this style.
Other types of mini bike kits include motocross bikes and Grand Prix racing bikes. Each of these bikes can be used for recreation or for racing, though one is meant for racing and riding off-road, while the other is meant for pavement riding. Neither bike is street legal in most cases due to the size of the bikes, though some larger mini bikes can be made to be street legal in some places. Motocross mini bike kits feature knobby tires good for traction in off-road conditions, while mini street bikes feature road slicks and a more aggressive riding position like their full-size cousins.