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Engine. DOHC, multivalve, water-cooled, four-stroke, single. The Yamaha YZ450F is a four-stroke racing motocross bike built by Yamaha Motor Corporation. It was the successor to the previous YZ426F which was discontinued in 2003. It is credited by Cycle World and Dirt Rider magazines as the bike that started the four-stroke dirt bike revolution.
The first bike manufactured by Yamaha was actually a copy of the German DKW RT 125; it had an air-cooled, two-stroke, single cylinder 125 cc engine [1] YC-1 (1956) was the second bike manufactured by Yamaha; it was a 175 cc single cylinder two-stroke. [1] YD-1 (1957) Yamaha began production of its first 250 cc, two-stroke twin, the YD1. [1]
Motocross (or MX) is the direct equivalent of road racing, but off-road, a number of bikes racing on a closed circuit. Motocross circuits are constructed on a variety of non-tarmac surfaces such as dirt, sand, mud, grass, etc., and tend to incorporate elevation changes either natural or artificial.
Website. www .betamotor .com. A 2000 Beta Rev 3. Beta is an Italian motorcycle manufacturer, specialising in off-road motorcycles. Beta is best known for their popular observed trials bikes. In 2005, they launched a range of enduro motorcycles using KTM engines. In 2010 they launched the new RR series, with a new engine made in-house.
Jason Anderson (motorcyclist) Jason Anderson (born February 17, 1993) is an American professional Motocross and Supercross racer. He has competed in the AMA Motocross and Supercross championships since 2011. [ 1][ 2] Nicknamed "El Hombre", he is the 2018 450cc AMA Supercross Champion, the 21st winner of the Supercross title.
MX racing bikes have often been used as platforms for building enduro bikes. [1] This was partially driven by the conversion of MX from 2-stroke to 4-stroke engine designs to comply with regulatory trends, as well as the development of hybrid competition races such as Enduro-X. [1] Compared to MX bikes, enduro and dual-sport bikes traditionally had a much higher proportion of 4-stroke motors.
A typical pit bike is usually a small dirt bike, but it has become common to be able to buy pit bikes with street-style wheels and tires. Pit bikes with street tires, as opposed to knobby tires, are used in Mini Supermoto Racing. [citation needed] Pit bikes are frequently heavily customized with decorative add-ons and performance-enhancing parts.
Josh Hansen (born February 16, 1984) is an American professional motocross racer, currently riding the no. 100. The son of retired motocross champion Donnie Hansen, he is best known for winning the GOLD medal for Best Whip in Moto X at the Summer X Games for 3 consecutive years. [1] Hansen also won back to back gold medals at X Games 14 and X ...