juanki
11-02-2006, 03:50 PM
i was reading the rules from atva that are in usage in racing in the US.
for what i understood, for pro racing, the frame, botom end and all its parts have to be from a factory, and then you can change about everything. for the engine they say that in has to be no bigger than 450 cc for a four stroke and 250 two strokes.
i'm guessing that class a-3 is pro production and a-4 is pro open.
so now lets say that ktm releases their new machine in a 450 engine and they put the 250 2 strokes engine and make it a production bike, colud that be raced in the pro production?
for what i understood, for pro racing, the frame, botom end and all its parts have to be from a factory, and then you can change about everything. for the engine they say that in has to be no bigger than 450 cc for a four stroke and 250 two strokes.
i'm guessing that class a-3 is pro production and a-4 is pro open.
so now lets say that ktm releases their new machine in a 450 engine and they put the 250 2 strokes engine and make it a production bike, colud that be raced in the pro production?