Honda bike

Despite Honda claims of the MC19 engine revving to 18,500 in the users manual, the reality is that the ignition cuts out at around 17,230 rpm, and the ignition map is retarded around the powerful revs (14,000 to 16,000 rpm) to limit the horsepower to Japanese law. These bikes were only ever sold new in Japan, and later the CBR250RR was sold new in Australia. They however can be found in almost any country of the world, and in a number is the most powerful 4-stroke bike a learner is allowed to ride, and hence their popularity. The CBR250RR has six gears, and revs just under 9,000 rpm at 100km/h. Despite the high revs, the bike requires little maintenance, and should easily last 100,000 km with regular oil changes (over 1/2 a billion revolutions). The engine is somewhat unusual in that it uses gear driven cams, further reducing maintenance requirements.