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The CRF450R was introduced in 2002. Unlike the competing Yamaha YZ426, the first generation CRF450R has an aluminum frame. In 2003, Honda added a longer shock and new linkage to raise the rear end and steepen the head angle. In 2003, camshaft, exhaust, and ignition map were revised. The handlebar size was changed to 7 ⁄ 8 in (22 mm) in 2004.
The Honda CRF450R was the first in the series, followed by the CRF250R in 2004. Further down the line, the CRF450X and CRF250X bikes emerged, both designed for mostly off-road use. They are considered among the best motocross bikes of their class, and have been a leading seller since their introduction. [1]
In addition, Honda changed the carburetor from a 42 mm Keihin butterfly type to a 40 mm Keihin FCR. This increased the power from about 33 horsepower (25 kW) in the first generation to over 41 horsepower (31 kW) in the second. The first generation engine had a 10.5:1 compression ratio while the second generation had a 12:1 compression ratio.
The Honda CRF450L (known as CRF450RL since 2020) [1] is a CRF series 450 cc (27 cu in) dual-sport motorcycle made by Honda. It was announced in May 2018 and available from September of the same year. [6] It is the fifth member of CRF dual-sport lineup (-L suffix) offered by Honda, after CRF230L, CRF250L, CRF1000L Africa Twin and CRF150L.
The Honda CRF450X is an off-road motorcycle made by Honda Motor Company. It currently has a 450 cc (27 cu in) liquid-cooled single-cylinder engine. First offered in 2005, [2] the CRF450X shares very little with the CRF450R motocrosser. [1] The CRF450X has seen massive success in the Baja 1000, seeing 11 victories and another 5 wins in the Baja ...
[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 ...
The Honda CR series was a line of two-stroke off-road motorcycles made by Honda from 1973 to 2007. They are racing motorcycles with countless trophies in the 125, 250 and 500 motocross classes. Marty Smith, Jeremy McGrath, Ricky Carmichael and many other motocross legends dominated racing circuits on Honda CR's. CR's continue competing today ...
In developing countries where typical motorcycles are 125–150 cc (7.6–9.2 cu in) displacement, the larger 249.5 cc (15.23 cu in) CBR250R is at the higher end of the sport bike range, [10] looking similar to much more powerful sporting machines with its full fairing in Honda's new layered style that was introduced on the 2008 CBR1000RR Fireblade and 2010 VFR1200F.