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 Post subject: GT sizing...
PostPosted: Mon Apr 15, 2013 1:35 pm 
Old School Hero
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Joined: Thu Apr 30, 2009 5:07 pm
Posts: 225
If I ride a 20" kona...what size GT frame would suit? I used to ride a 20" Avalanche but it was a beast....


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 2:06 pm 
Retro Guru
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Joined: Wed Mar 14, 2012 5:46 pm
Posts: 259
Location: Newcastle upon tyne
Prolly 18" i'd guess. how tall are you?


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 2:09 pm 
Old School Hero
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Joined: Thu Apr 30, 2009 5:07 pm
Posts: 225
6ft2


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 2:20 pm 
Gold Trader
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Joined: Tue Jun 28, 2011 4:22 pm
Posts: 1935
Location: Berlin
I am 6ft3 with rather long legs and have 18 (good) and 19inch (perfect).

Many more 18inch available, though...


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 5:17 pm 
Retro Guru

Joined: Thu Sep 01, 2011 5:11 pm
Posts: 1043
Location: Left Coast of Canada
Where are you guys measuring from? I just bought a 20" mid 90's Zaskar (measured center of bb to top of seat tube) and I'm a short legged 6'1" er.


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 5:25 pm 
Old School Hero
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Joined: Thu Apr 30, 2009 5:07 pm
Posts: 225
From what I remember... GTs are measured bottom bracket to centre top tube...not seat tube


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 5:48 pm 
Gold Trader
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Joined: Tue Jun 28, 2011 4:22 pm
Posts: 1935
Location: Berlin
Exactly. GT sizes are measured centre BB to centre top tube. dirttorpedo very likely has a 18inch. My 19inch Psyclone is 48,1cm C-C (18,9inch) and 54,6cm C - End (21,5 inch).


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 7:45 pm 
Retro Guru

Joined: Thu Sep 01, 2011 5:11 pm
Posts: 1043
Location: Left Coast of Canada
That's what I thought which is why I was a bit surprised when the fellow at the gear swap measured it to the top of the seat tube. The whole virtual top tube thing messes me up. :? So if its an 18 inch I should be just about right size wise with my short legs. 8)

I'll check the serial number when I get home and if I'm good I just need to give it a good cleaning before I build it up.


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 Post subject: Re: GT sizing...
PostPosted: Mon Apr 15, 2013 11:43 pm 
Retro Guru
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Joined: Sun Aug 01, 2010 1:04 pm
Posts: 2501
Location: West Sussex
I'm 6ft (with semi short legs). Ride GTs in 18 & 20. A 20 with a long stem is a bit of handful I will admit but
should be ok. 18s are more easy to handle off road, 20s more comfy on road/trails.


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 Post subject: Re: GT sizing...
PostPosted: Tue Apr 16, 2013 4:52 am 
Retro Guru

Joined: Thu Sep 01, 2011 5:11 pm
Posts: 1043
Location: Left Coast of Canada
Checked the drop-out. You guys were right on - 18 inches. If I'm interpreting the code right it was manufactured in the March of 1995. I'm building it as a commuter/street bike so I hope the 18 isn't too small. I have a 100 mm stem and a raceface riser bar I'm planning to put on it. I've also been bodging together a pair of Magura HS22's which I'm going to try on it - if I can figure out how to bleed them without the factory kit.

Are there any original GT steel forks kicking around? I've got a Surly 1x1 to mount on it, but it seems a shame not to put an original GT fork.


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