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Technical & Reference Section => Tech and Restoration => Topic started by: Jocarl011 on July 02, 2017, 10:26 PM

Title: 91 GT Vertigo Restoration
Post by: Jocarl011 on July 02, 2017, 10:26 PM
Ok got to start somewhere! Just aquired my first bmx in over 20 years, I think it's a 91 GT Vertigo which is in a very sorry state! I have restored plenty of retro mtbs and road bikes but never a bmx so looking for advice on everything from where to source parts to how on earth the giro is meant to work?? This one is taped up to the frame with insulation tape and it looks like the outer cable is too short at the brake lever! The whole thing is wobbly!

I want to restore the crank so looking for a GT decal for that... the bottom bracket has loads of play at the crank arms so could do with knowing what BB i need?

The frame is going to be stripped down and powdercoated Black so trying to find decals for it, someone has already pointed me to delcals in another thread.

The saddle which is from an apollo is going to be kicked hard into a field, So will need a new one.

The chrome has flaked away and rusted on the handlebars so probably best to find some new ones?

Pedals are shite, no front brake the list goes on.....

Thanks Carl.
Title: Re: 91 GT Vertigo Restoration
Post by: poorboyee on July 02, 2017, 10:50 PM
its looks like a 96/7 model the early 90s ones still have the double "S" bend down tube, similar to the iconic 80s ones have a look on "bmx-museum" ;) the mid 90s models still ride quite nice and look kind of cool with the bent seat stays, sorry to be the bearer of bad news but good luck with your build anyway 8) 8) 8) 8)   
Title: Re: 91 GT Vertigo Restoration
Post by: ED209 on July 03, 2017, 08:32 AM
its a 98  :)

(http://bmxmuseum.com/image/98_gt_vertigo_1_blowup.jpg)
Title: Re: 91 GT Vertigo Restoration
Post by: Jocarl011 on July 03, 2017, 08:38 AM
Oh! Was sold to me as a 91. Should have done my research! I paid £40 for it so no loss...

Thanks guys
Title: Re: 91 GT Vertigo Restoration
Post by: In2bmx on July 03, 2017, 09:33 AM
Looking forward to seeing the updates  :coolsmiley: fistblump
Title: Re: 91 GT Vertigo Restoration
Post by: Jocarl011 on July 04, 2017, 11:45 AM
Will it be a 1" headset on this bike?
Title: Re: 91 GT Vertigo Restoration
Post by: ED209 on July 04, 2017, 01:57 PM
Will it be a 1" headset on this bike?

judging from the age and pics I'd say no ... looks to be the clamp on 1 1/8th sort

£40 for a bike that you can cut your teeth restoring is money well spent in my book ... I did just the same with a Vertigo when I was starting out  :)
Title: Re: 91 GT Vertigo Restoration
Post by: ED209 on July 04, 2017, 02:03 PM
Spend as little as you can  :daumenhoch:

Get some primer and spray up the bars

forget the front brake

anything rusty will come up a treat in an oxalic or citric acid bath ( buy it off ebay )

Del is your man for decals ... they might not match exactly but who cares

PMSL at kicking the saddle into a field ... agreed  fistblump

have some fun with it Carl  :)

here's the one I did ... sprayed stuff ... begged and scrounged parts ... learn't a lot!

[attachment=1]
Title: Re: 91 GT Vertigo Restoration
Post by: fugazi on July 04, 2017, 05:19 PM
Will it be a 1" headset on this bike?
The bike in your pics has a 1" threaded headset & quill stem setup, like an old school bike  :daumenhoch:
Title: Re: 91 GT Vertigo Restoration
Post by: Jocarl011 on July 04, 2017, 07:45 PM
Spend as little as you can  :daumenhoch:

Get some primer and spray up the bars

forget the front brake

anything rusty will come up a treat in an oxalic or citric acid bath ( buy it off ebay )

Del is your man for decals ... they might not match exactly but who cares

PMSL at kicking the saddle into a field ... agreed  fistblump

have some fun with it Carl  :)

here's the one I did ... sprayed stuff ... begged and scrounged parts ... learn't a lot!

[attachment=1]

Love those decals, I have asked Del for those in yellow!

Title: Re: 91 GT Vertigo Restoration
Post by: Jocarl011 on July 04, 2017, 07:51 PM
Just took the stem off, it is in face a 1" quill.

Can anyone tell me if my crank arm looks bent? The chainring is definitely straight but it doesn't sit straight on the protruding metal bit? Or is it supposed to be like that?? That would explain why the chain goes tight when rotating the crank to 12 o clock!
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