Motocross is a form of off-road motorcycle racing held on enclosed off-road circuits. The sport evolved from motorcycle trials competitions held in the United Kingdom.
A motocross rider coming off a jump
A Maico 360 cc with air-cooled engine and twin shock absorbers on the rear suspension
FIM Motocross World Championship
Motocross des Nations
The six main types of motorcycles are generally recognized as standard, cruiser, touring, sports, off-road, and dual-purpose. Scooters and sport touring are sometimes recognised as a seventh category, or integrated with the touring category in the case of the latter.
A group of sport bikes, cruisers, scooters, and touring bikes
A standard BSA motorcycle
A modern Suzuki standard motorcycle
Harley-Davidson cruisers