Cannondale Optimo R1000

i had a weak moment and ordered a new roadracer bike. forgive me. the guys in the "bunny hop shop" made a good price for a black R1000 Mod.2004. As i found nowhere information
about its weight, we weighted it: ca. 7.8-7.9 kg. So with pedals, cage etc. maybe its 8.5 kg then (pessimistic)



during testriding it feels like having a flat tire at the back wheel. but its 8.5 bar.