this reminds me of a common conversation I have
"how fast is your bike?"
"It's pretty fast when its falling over"
"no, how fast is your bike?"
"Its a bike it can't move on its own but, I am pretty fast when I am pedaling it."
weight is superfluous unless you are a pro and am trying to shave a tenth of a second off of your time.
most track bike frames are in the sub 10lbs category built your average bike weights from 13lbs to 23lbs
get over the weight subject and get to riding your bike so it can be fast