That is with a 1/2 tank of gas...so add 15lbs to top of the tank(bigoltool @ Feb. 07 2007,10:54) Nick Slick's Busa weighed 475lbs fully fueled. Sounds like a good starting spot.
A fully fueled (bone stock)GSXR1000 weigh's about 443lbs.
http://www.nickslick.com/
Wait! Don't end this interesting thread! I was just going to get my(Juggler @ Feb. 07 2007,15:49) Thanks for all the input guys!