The welds here are not those of aluminum alloy. You can compare them with the welds of the Zaskar AL, and there are slight differences in details from the Zaskar. Both the frame owner and I have aluminum, steel, and titanium frames, and we are both certain that this is a titanium alloy frame.
Who can tell me which model of GT this titanium frame is? I've never seen before.
I share the same thought, but I feel that custom titanium frames might have been almost impossible in the 1990s. However, I don't know much about titanium frames from that era. But many details are so similar to the Zaskar, including the tube shape of the rear chainstays, the reinforcement on both sides of the dropouts, the style of the dropouts, the rear upper fork connecting plate, and even the direction of the seat tube cut groove.
If it’s titanium. It’s either not a GT or a prototype.
Frame can be dated by its dropout design , canti routing etc to 93-95.
95 has a very slightly different dropout so I think it’s 94.
Xizang was in full production since 1990 and Lightning didn’t arrive until 97. So can’t be a proto of either of them.
What’s the end cap look like? GT logo?
The welds are nowhere as near as Ti GT welds particularly around the dropouts.
That's also one thing that makes me uncertain. The end caps don't have the GT logo, but the GT All Terra also has a completely round top tube and [round tubes]. In fact, it's more like the All Terra than the Zaskar.I suspect that if it was produced by GT, it might have been manufactured in the same factory but then abandoned due to unsatisfactory weight or craftsmanship. Later, GT might have had other brands OEM their titanium frames.
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all terra
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A few things to look at
It's gussetless
It's set up for cantilevers
Machining for the dropouts didn't happen until later in the Zaskar life cycle
A 93 model zaskar had some of the cable stops riveted onand a big chunky cable stop
The welds themselves. The Zaskars of that era had big messy fat welds, these are small and neat - ish
It's gussetless
It's set up for cantilevers
Machining for the dropouts didn't happen until later in the Zaskar life cycle
A 93 model zaskar had some of the cable stops riveted onand a big chunky cable stop
The welds themselves. The Zaskars of that era had big messy fat welds, these are small and neat - ish
Its top tube is like that of this All Terra, for which I also can't find the specific year
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From my experience, it's 100% titanium
