Nope I'm right.

Im guessing the pista concept frame weighs about 1400grams
that wheelset i mentioned is about 1300 grams
seatpost 150 grams
saddle 135 grams
hollowtech crankset with only 1 ring and BB 700 grams
chain(116 links) 275 grams
cog + lockring 150grams
lightweight road handlebar 200 grams
syntace stem 100 grams
light weight tufo 125grams a piece
pedals 200 grams
+100 grams for things like headset spacers chain lube, bare tape, and tubular glue.

that build is about sub 5000 grams or 11.36lbs.

i mean not to say i told you so or anything like that.