NEW Once upon a time there was a boy who really loved motocross and dogs poster

 

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Japanese motorcycle manufacturers began challenging the European factories for supremacy in the motocross world by the late 1960s. Suzuki the first world championship for a Japanese factory when Joël Robert won the 1970 250 cc crown. The first stadium motocross event took place in 1972 at the Los Angeles Coliseum, and was promoted by Mike Goodwin and Terry Tiernan, then-president of the AMA. The event was won by 16-year-old Marty Tripes. This event paved the way for constructed, stadium-based motocross events known as Supercross. In 1975, a 125 cc world championship was introduced. European riders continued to dominate motocross throughout the 1970s but, by the 1980s, American riders had caught up and began winning international competitions.

From the late 1970s to early 1990s, Japanese motorcycle manufacturers presided over a boom period in motocross technology. The typical air-cooled two-strokes with twin-shock rear suspension and telescopic front forks gave way to machines that were water-cooled and fitted with single-shock absorber rear suspension and “upside-down” (or inverted) front forks. Although the advancement of two-strong engine technology was the primary focus of the major Japanese motorcycle manufacturers well into the mid 1990, a rekindled interest in engineering a competitive, lightweight four-stroke motocross race bike was expressed among several brands, including Yamaha Motor Corporation .

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