i was rounding the weight a little bit just so i didn't have to get the number out of the book. its a 2009 ninja 650r. I looked it all up for you. it is actually 440lbs with a full tank but i was riding on the track with the fuel light flashing. so take out roughly 8lbs per gallon of gas 8x 3.5(gallons) so take off 28 lbs. so i was racing the bike at (412 +/- 2 lbs) and me at (265+/- 5 lbs). i had crappy 60ft times though only 2.0sec in the 60ft. it would be cool if one of you guys would just go to an open track day and get a time.