I built up a sub-10kg commuter bike a while ago, based around a Kinesis 7005 polished frame and it is mighty light, but cost a fair whack (~1K
) through use of Ti and Scandium components!
Mine has Disc brakes, and HEAVY white-wall semi-slicks..
However, depending on what you want to use it for, are you going with folding tyres, because you'll save a bundle of weight there?
I also found you can get away with 2 chainrings, so there's some more saved
If you haven't yet found/used them, KCNC are a GREAT source of reasonably priced, good-quality light componentry.. It's all the little things like cable outers, bolts and spacers that add up..
2013 On One Scandal | 2011 Ghost ASX 3700 | 2008 Magura Test Bike | 2006 Raleigh RS950
1999 Voodoo Hoodoo | 1999 Raleigh RSP 450 | 1997 Giant ATX-D 990 | 1997 Ghost X-700
1995 Giant Cadex MCM-3 | 1995 Voss Ti | 1993 Giant Cadex CFM-2 | 1992 RS Topline Mammoth