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0W61: The first Japanese V4 engine in a 500cc Grand Prix motorcycle. Also had a new frame structure that was the basis for the Deltabox frame, which was developed by Spanish engineer Antonio Cobas. [1] 1983: 0W70: Introduction of the aluminum Deltabox frame and designed specifically for a 17-inch front wheel (from 18 inches). 2nd 1984
The Kawasaki KX500 was developed as an air-cooled 500cc motocross bike for competition in the 500cc and Open-Class of motocross. At the time of its release, several top manufactured sported entries in this class, including Yamaha, Suzuki, Honda and the class-leading Maico. Kawasaki developed the bike on an annual basis through the 80's.
[3] [4] Italian magazine Motociclismo claimed to have achieved 193.24 mph (310.99 km/h) testing the F4 R 312, more or less confirming the claimed speed and tying, if not exceeding, the 1999 Suzuki Hayabusa's tested speeds of 188–194 mph (303–312 km/h), [5] whereas Sport Rider were only able to achieve a 185.4 mph (298.4 km/h) top speed ...
A Grand Prix racing version of the bike was developed, the TR500. In 1968 the racer was capable of 135 mph (217 km/h) and development raised the top speed to 147 mph (237 km/h) the following year. Suzuki gained its first 500 GP at the 1971 Ulster Grand Prix in the hands of Jack Findlay, [6] who also won the 1973 Senior TT. [15]
After Honda withdrew from racing at the end of 1967, there was no comparable racing team that could have denied MV Agusta the title in the 500cc class; This remained so until 1972. The first races of the 1973 season were driven by Agostini still on his tre, then it was replaced by the more powerful MV Agusta 500 four-cylinder.
In 1998, the bike was not deployed because of the study of a custom engine, which allowed Aprilia to return in 1999 with a 500 cm 3 engine ridden by Tetsuya Harada, with the RAVE valve to control the electronically controlled exhaust. [3] In 2000 the Aprilia brought two bikes on the grid, led by Harada (nº 31) and Jeremy McWilliams (nº 99).
1997 Honda NSR500 engine: Liquid-cooled 499 cc V4. 6-speed transmission. 185 PS / 12,000 rpm Shinichi Itoh, riding his Honda NSR500 in the 1993 Japanese Grand Prix. The Honda NSR500 is a road racing motorcycle created by HRC (Honda Racing Corporation) and debuted in 1984 for the Grand Prix motorcycle racing's 500 cc class.
The Kawasaki KR500 was a racing motorcycle manufactured by Kawasaki from 1980 to 1982 for competition in the Grand Prix motorcycle racing series. The motorcycle was powered by a 494 cc two stroke engine, and used an aluminium monocoque frame, similar to the 1979 Honda NR500 racer, aimed at improving aerodynamics with a small frontal area, improving chassis stiffness and reducing weight.