Titanium alloy GT Zakar sample frame? A GT Titanium 26 frame I've never seen before, perhaps a 1993 sample frame. I found it in a vintage MTB collector's collection. According to him, he doesn't know if it's a titanium frame produced by GT either. But there's no doubt that, except for the metal material, the dropout, the rear upper fork connecting plate, and the top tube of this frame are exactly the same as those of the 1993 Zakar AL. Moreover, it's very heavy... Both he and I are curious to know if this frame is a sample frame from GT. Maybe it was an attempt by GT to produce it but they didn't release it because they found it was overweight?