Today minibikes have evolved into several specialized types, all around the concept of a mini motorcycle. A typical minimoto is approximately one-fourth the size of a regular motorcycle, and is powered by a two-stroke internal combustion engine of between 40–230 cc producing somewhere between 2.4 and 17 hp (1.8 and 11 kW) and weigh approximately 50 lb (23 kg). The entry-level models produce about 2.4–4.2 hp, but the more expensive racing models can have a power output of about 11–17 hp. This provides a power-to-weight ratio favorable to racing. Despite their tiny size both adults and children race them at speeds of up to 78 mph (126 km/h) in organized racing leagues. 

Pocketbike/MinimotoThese look like sport bikes and are used to race (Pocketbike racing) on tracks used for kart racing. The usual size of these bikes less than 50cm in height and 1 meter in length. The engine usually packs a 39cc to 50cc two-stroke engine with a maximum of 15 horsepower. Maximum speed varies between 30 to 70 km/h. A pocket/MiniMoto bike is a miniature version of a Grand Prix (GP) motorcycle. GP moto is the nickname for a racing motorcycle. So, in general, a pocketbike is a scaled-down replica of a GP motorcycle. There are two engine types that pocketbikes come in. The most common pocketbikes are two-stroke engine ones, although newer designs are pointing towards the creation of four-stroke units - due to even-more restricting pollution laws.Pit bikesTrue to the original concept of a small scooter used to quickly move around the pit areas of motor racing tracks and events. They look like motocross motorcycles and are also used in some motocross competitions. Recently the sport of mini moto (racing pit bikes on motocross and supercross tracks) has taken off. There are numerous series in the United States and there are also full fledged mini moto pros. The Las Vegas Mini Supercross is the biggest mini moto event of the year.Mini Bike/Pitbike Racing and Competition
Pitbike Racing and Competitions takes the form of Supermoto racing using a form of Pitbike/minibike with a wheel size of 10inch front and rear with supermoto slick tires fitted. The bikes are prepared for racing with precautions such as catch tanks to collect possible fluid spillages being dropped onto the tracks causing possible skidding hazards, to fellow competitors.

The ease of transportation and the low cost of the bikes (they are priced from approximately US$200 for a basic model built in China to around US$7,000 for a top of the line Italian model, making them an affordable way for children (some as young as six) to learn about motorcycle racing and for adults to race without the high costs and risks associated with full-sized motorcycle racing.