lightweight TT framesets
so I have done my first triathlon and I want to go faster!! As a cyclist, the bike leg is my strongest area. Currently I am using my road bike and I'm fairly competitive even against the guys on full TT bikes. I am not a big chap and don't produce frame-bending power so weight is really important. Despite being an aluminium frame, my road bike is pretty light at a shade over 8kg. I did try a set of clip on areobars but couldn't get comfortable probably due to the geometry of my road bike, however, I did notice the speed advantage.
So my question is: without breaking the bank, what is the lightest TT frameset I can get? I have no problem with second hand