Join Date: Jun 2006
Bikes: Brompton & Thorn Sherpa Mk3
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Identify old GT mountainbike frame?
I have just got a old steel gt frame (for free!). I have figure out that it take a U-brake in the rear placing it pre-1993 I think since I read somewhere that 1992 was the last year GT used U-brakes. It is steel excluding Xiang and not fillet braced excluding psyclone. So I try to figure out whether it is a high or low-end steel frame. It is definitely heavier than my kona kilauea from 1995 but judging from the previous owner it shouldn't be a low-end model (and GTs from that era where never light if I got it right). Is there any easy way of telling the models apart (it was bare steel when I got it and now I have had it powder coated so that might rule out some identification options). I got to know that serial number of the frame could be used and if the first letter is an H, GT had it built at Taiwan-Hodaka and they made mopst of the GT's from the Karakoram up in the line. If it's an S or maybe SF it was probably built by SanFa. Most of the 400 dollar and under models Timberline, Talera, Outpost and Outpost Trail were built there.
The serial number of my GT is T 90016923. Not sure what this tells me. Does it mean that the frame was built in Taiwan-hodaka in january, 1990?
The cap at the back, where the GT logo is, is flat if that matters (the end f the top tube kinda).
Any hints are welcome!