Nice set of ti bikes, I'm interested in any info you have on the Merckx, I bought the same bike used (with a 9 speed Dura-Ace group and LOOK fork) after test riding it at my local shop. I researched it on the internet and found that the AX was supposed to be flexy, which mine is definately not, but then read that it was supposed to have a threaded headset and round tubes. Mine has the bi-oval downtube and 1" threadless that yours appears to have, and I was wondering if you knew when they changed the specs?