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Ive had a 89 GT Veritgo ST in my collection for a few years now. The more I look at it, the more Im puzzled. The f/f/post are 4130, stamped and identical (I think, could be wrong) to 86 Pro Performers.

Did GT just use a surplus of old 86 Pro Performers for this line?

If this has been discussed before, sorry, just have never seen it and its something I cant shake every time I look at my setup.

Thoughts?

RadDad · 2012-09-18 6:50am

very cool observation. wouldnt surprise me.

RL Paulie · 2012-09-18 7:00am

The Serial number will tell. Post some close up pictures of the frame.

CKTA · 2012-09-18 9:13am

They look similar, but are not.

Gustafa · 2012-09-18 9:24am

RL Paulie wrote:
The Serial number will tell. Post some close up pictures of the frame.

I know my serial, its an 89, Im not guessing what I have, just pontificating on how similar the frames are. 86 Pro Performer & the Vertigo ST.

Heres my combo:

Does anyone know the differences between the two? Outside of the forks, which are different. The Vertigo "seems" to have a longer seat platform, but I cant say for sure.

Last edited by Gustafa (2012-09-18 9:27am)

Haro-83 · 2012-09-18 9:35am

Ask dyno-mike

bmxism · 2012-09-18 9:37am

Angled platform bridges, different dropouts, way more vent holes, chainstay bridge. Basically, that frame is as much an 86 Pro Performer as a 86 Haro Master is.

RL Paulie · 2012-09-18 10:26am

Gustafa wrote:
RL Paulie wrote:
The Serial number will tell. Post some close up pictures of the frame.
I know my serial, its an 89, Im not guessing what I have, just pontificating on how similar the frames are. 86 Pro Performer & the Vertigo ST.

What I meant was that the Serial number format will tell you where it was manufactured. From what I understand, SN's are usually stamped on the dropout or bb shell when the dropout or bb is manufactured, before the frameset is welded together. If that's the case... if it's showing an 89 date on the SN then no way could it be overstock 86.

I'm with bmxism. No way does that look like a US or Japanese 86 frame.

bmxism · 2012-09-18 10:47am

Cable guide on TT, way thicker stay tubing, appears to have a machined headtube as opposed to brazed-on reinforcing rings. Shall I go on?

Gustafa · 2012-09-18 12:06pm

Thanks for the education fellas.

LooseNut · 2012-09-18 9:09pm

Either way, the 88-89 4130 Vertigo STs are a great frame set. I'm restoring one right now with a long list of worthy parts. I never understood why the Performer was considered the upgrade when the Vertigo got the 4130 frame/fork as well as 48s.

Last edited by LooseNut (2012-09-18 9:10pm)

CKTA · 2012-09-19 9:04am

LooseNut wrote:
Either way, the 88-89 4130 Vertigo STs are a great frame set. I'm restoring one right now with a long list of worthy parts. I never understood why the Performer was considered the upgrade when the Vertigo got the 4130 frame/fork as well as 48s.

Couldn't agree more!

Gustafa · 2012-09-19 11:03am

CKTA wrote:
LooseNut wrote:
Either way, the 88-89 4130 Vertigo STs are a great frame set. I'm restoring one right now with a long list of worthy parts. I never understood why the Performer was considered the upgrade when the Vertigo got the 4130 frame/fork as well as 48s.
Couldn't agree more!

Exactly, unless you just wanted that S curve down tube, seems so odd.

LooseNut · 2012-09-19 5:50pm

Gustafa wrote:
CKTA wrote:
LooseNut wrote:
Either way, the 88-89 4130 Vertigo STs are a great frame set. I'm restoring one right now with a long list of worthy parts. I never understood why the Performer was considered the upgrade when the Vertigo got the 4130 frame/fork as well as 48s.
Couldn't agree more!
Exactly, unless you just wanted that S curve down tube, seems so odd.

Yeah, it's hard to compare the Pro Performers / PFTs to the Vertigos given the PFTs and PPs had 990 mounts, cable guide inserts and the obvious geometry / build differences. But, for the price then and now, I'm really pumped about owning a 4130 Vertigo.

I'm putting on a number of PFT worthy parts along with a mix of parts that I'd never put on a PFT but am really excited about like a ACS Pro Rotor setup... which the Vertigo cable guides are setup for specifically.

I just checked Ultrahive's website for decals and the 88 Vertigo ST isn't getting any love... bummer.

Last edited by LooseNut (2012-09-19 5:52pm)

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Odd theory on 89 GT Vertigo ST's

Odd theory on 89 GT Vertigo ST's

#2 2012-09-18 6:50am

Re: Odd theory on 89 GT Vertigo ST's

#3 2012-09-18 7:00am

Re: Odd theory on 89 GT Vertigo ST's

#4 2012-09-18 9:13am

Re: Odd theory on 89 GT Vertigo ST's

#5 2012-09-18 9:24am

Re: Odd theory on 89 GT Vertigo ST's

RL Paulie wrote:

#6 2012-09-18 9:35am

Re: Odd theory on 89 GT Vertigo ST's

#7 2012-09-18 9:37am

Re: Odd theory on 89 GT Vertigo ST's

#8 2012-09-18 10:26am

Re: Odd theory on 89 GT Vertigo ST's

Gustafa wrote:

RL Paulie wrote:

#9 2012-09-18 10:47am

Re: Odd theory on 89 GT Vertigo ST's

#10 2012-09-18 12:06pm

Re: Odd theory on 89 GT Vertigo ST's

#11 2012-09-18 9:09pm

Re: Odd theory on 89 GT Vertigo ST's

#12 2012-09-19 9:04am

Re: Odd theory on 89 GT Vertigo ST's

LooseNut wrote:

#13 2012-09-19 11:03am

Re: Odd theory on 89 GT Vertigo ST's

CKTA wrote:

LooseNut wrote:

#14 2012-09-19 5:50pm

Re: Odd theory on 89 GT Vertigo ST's

Gustafa wrote:

CKTA wrote:

LooseNut wrote:

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