MotoGP is like F1 to cars.
In AMA bikes are derived from production models, in GP they are custom designed and build. Where else can you see a V5 sport bike with 200+ HP?
There is also 125cc and I think 250 GP.
Indeed, just about all the exotica you see on GP bikes cannot be had unless you KNOW some people - then you gotta find a bike to put it on! Case in point - carbon discs, $4,000 per side, I believe they were permitted one year in WSBK but were banned because almost no team could afford such brakes.
GP bikes are your exotica no limit on budget sort of bikes. Essentially Honda has proven that if you dump enough money into it, you'll win.
SBK is supposed to be based on bikes you can buy from your dealer, and supposedly all the parts they have are available to you and I - but for a price and if you know the right people.
The motoGP class of the motoGP is the best of the best! the fastest (and most expensive) machines. and the best riders (generally!). There are 3 classes in the motoGP. 125cc (2-strokes), 250cc (2-strokes), and the motoGP class (1000cc 4-stokes, formely 500cc 2-strokes). Since the introduction of the 1000cc 4-strokes in 2002, the motoGP class has become the ultimate and undisputed racing class in the world.
AMA is simply USA's superbike competition (just like British Superbikes or Australian Superbikes). World Superbikes is (supposedly) the next step up from national competitions, to international racing. The thing that attracts people to Superbikes (and that allways will), is that they are based on production bikes. It is in their rules. So, u can buy the machines that the riders are riding (100% stock though[xx(]!)Many good riders make the transition from SBK to MotoGP and vica-versa but it is generally accepted that the best riders race the in the MotoGP class of the MotoGP.
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