A chopper is a radically customized motorcycle, archetypal examples of which are the customized Harley-Davidsons seen in the 1969 film Easy Rider.
Some vehicles may be petrol or diesel driven with a steering wheel. Usually vehicles have four wheels but some three or two wheeled vehicles do exist, such as motorcycles. Some vehicles are powered by humans like bicycles. Some vehicles are pulled by animals like chariots.
Race Queens seem to represent a truly Japanese phenomenon and they epitomize all of the utterly wonderful things about the perfect Japanese female body - curves, shapely legs like those of Stacy Keibler, and high-heeled shoes. Perfect, no? It is mildly exploitative of women.
The term is also used outside of Japan in South Korea, China and other Asian nations. The Korean term for a race queen is a "racing girl". In Thailand they are known as "pretties" and they are used extensively at events ranging from the Bangkok International Motor Shows to minor events such as openings of shopping centers.
The models, referred as "grid/pit girls" in Europe, are very common in many series worldwide, but are mostly banned in the United States due to the reasons of being associated with sexism, as many drivers' wives, in addition to women race officials, team public relations staff, members of the media, and in some cases mechanics or drivers are prevalent in the paddocks.
Who came up with the idea of having great looking women holding umbrellas over racers gathering on the starting grid? Let’s face it, their whole job lasts about 5 minutes. They run out there, hold an umbrella, smile at any camera that comes by and that’s it.
I would like to question the sincerity of many of Japan's so-called Formula One enthusiasts. Tell me, how can the poor spectator concentrate on the race when the event's hottest bodywork is found prancing along its sidelines? It appears that the Formula One is as much about cars as about fashion and style of girls.
Another significant issue in 2007 was the reduction in permissible fuel from 22 litres to 21 litres, causing engineers to introduce ECU control over maximum revolutions, where internal friction losses are highest, and leaning out the fuel-air mixture in sections of the track where maximum power is less necessary.
One of the main challenges that confronts a MotoGP motorcycle rider and designer is how to translate the machine's enormous power - over 240 bhp (179.0 kW), through a single tire-contact patch roughly the size of a human hand. For comparison, Formula 1 cars produce up to 750 bhp (559 kW) from their 2.4 litre engines, but have 10 times the tire-contact surface.
While MotoGP motorcycles are only raced at world championship level, the lighter and significantly less powerful 125cc and 250cc bikes are available at relatively reasonable cost. A basic production 125cc bike costs about the same as a small car.