Why, What, how??????

Okay, does anyone know where I can look on the internet or offer some insight that might help to explain the rules on Superbike, supersport, AMA, Formula racing. I am lost as to why certain bikes are allowed, some are not, what restrictions there are, etc. I really just want to understand these things so when friends ask me questions, I might have an answer, I love to watch all types of racing and I guess understanding it might go a long way. Szokr1:iamwithst

Look here: http://www.amaproracing.com/rulebook/

Champion has the right spot on the AMA site. Basically the ss classes, both 600 and 750 allow minimal changes ( although a typical privateer 600 pales in comparrison to the INTRICATE preparation a full factory or satellite team ( i.e. Erion, Bruce Transportation, Corona Suzuki, Valvoline etc etc ) will do WITHIN these rules. Stock wheels and brakes ( pads and line changes OK ) Stock forks, although the internals may be modified. Rear shocks may be substituted. 1 size over on cylinder bore is allowed. NO metal may be removed from the head ( although a 5 angle valve job may be employed ) Stock cams, pistons and cranks, and a minimum weight limit. DOT racing tires ( patterned) Superbike are Homogolated ( Spl?) bikes for sale by the manufacturers that start out stock, and aprox $150,000 later wind up with 170+ rwhp, totally exotic suspension and engine components, running on slicks, drinking $ 25 a gallon 118 octane nutec etc etc. Actually, normally aspirated motors, no blowers or juice.The only thing resembling stock on a superbike ( Factory ) is the usually heavily gusseted frame, and the engine cases........... Sorry if that's confusing:eek: Formula Xtreme ( supposedly ) stock frames, engine cases, no blowers, no juice, Slick tires, as wild a motor as you can stand ( 180+rwhp ). In a few years, this class will become SBK IMO. Probably more like superstock rules then, right down to DOT tires, but not for a bit;) 250 gp ? The only TRUE purpose built Rracers left. The kids RSV-250 Aprilia was $ 80,000 new, without spares. 210 lbs gassed up, about 90rwhp, on the right track, over 170 mph on top. NOTHING is more challenging or fun to ride well, that I have rode. Hope this helps;)

Thanks guys, that was exactly what I was looking for. One other question, why don't we see any more Yamaha's racing? Obviously privateers will likly opt for the Suzuki but The Yamaha Factory? what no interest?

With the Haga (drug/weight control) issues in 2000 WSB, Yamaha pulled the plug on factory teams, concentrating on GP 4 strokes, Yamaha North America only runs 1 Superbike team (Gobert), think alot of it centers around the cost of the R7, and lack of development on the R7 components. R7 pricing really prohibits use by privateers plus Yamahas purchase requirements involved in obtaining a R7, pro racing license & experiance, plus $25K initial cost. UK Superbike is now racing R1's in their series, but typically another hybrid R7/R1, which the AMA recently disqualified in Formula Extreme, too bad, great bike.

UK Superbike is now racing R1's in their series, ...and it has to be seen to be said they go like shit of a shovel but most people are still running gixxers.:ugh

I think a lot of it is just the fact that it's SO much easier to get big hp out of the gixxer motor. Our motor builder loves the R-1 for it's stoutness, and says getting 165 out of one is OK, but beyond that, MAJOR$$$$$ ( normally aspirated). Suzukis's , he gets over 170 out of them VERY ( comparatively) inexpensively. Nobody in the Nwest that's a serious national caliber rider is on an R-1 in open supersport or formula ultra. I think in places where the tracks are tighter and bumpier, where the big hp is hard to use, the R-1 would be competetive. Facts is facts;)