marshall2 Wrote:Cargo, are those displacement limits as stock or final displacement? I.E. Could a bored and stroked (If thats allowed) SV650 run in the 651cc – 750cc 4 stroke 2 cylinder class?

Yes it sure could
I'm not so sure if it would be really competitive but if it over 651cc and under 750cc then it would be fine.

Doesn't matter what the stock size is nor does it matter what you change bore or stroke just so long as it is 651 - 750 and a 4 stroke twin

I would advise that if someone did this they would be almost certain for a post race strip and measure cos if it was 649cc it would NOT be allowed