"In fact, the rules should stipulate both the cc and the cylinder number."
I agree. I like MotoGP as the "unlimited" class. I'd like to see the AMA and WSB go to two production classes, one for classy 1000cc Twins and one for 750cc Fours (to eliminate the separate 600 and 1000cc classes - I know, I'm dreaming, but I think 750s are more streetable than 600s and more real-world usable than 1000s. JMHO.)
600 not streetable.. Hey guess what the biggest sportbike seller is?
When is the last time you rode a 600 cc? Go look at 600 times and 1/4 mile times for 600s. That B.S. the GPTB spouses about 600 is just that B.S. My Ninja has more power than I'll ever use (and that includes beating longride on his Busa) .
Re: 600 not streetable.. Hey guess what the biggest sportbike seller is?
"That B.S. the GPTB spouses about 600 is just that B.S. "
If you take a look through the road test archives, you'll see that some of the GPTB'ers have ridden more bikes than you've talked about buying. A sensible person would attribute some credence to their opinions.