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 Post subject: '91 GT Avalanche
PostPosted: Mon Oct 29, 2012 2:03 am 
Dirt Disciple
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Joined: Thu Sep 22, 2011 9:36 am
Posts: 65
Location: Penistone/Peak District
'91 GT Avalanche

I picked this up a couple of days ago after wanting one since I was 13. Apart from the tyres/bar ends its all original.

Frame : 18" GT Triple Triangle, Tange Prestige & MTB Seamless Double Butted Tubing
Fork : GT/Spinner "2x4" With Cold Forge Adjustable Drop Outs
Rims : Ritchey Vantage Comp 26x1.5
Hubs/Skewers : Shimano Deore DX/Shimano Deore XT
Chain : Shimano Deore XT STI
Front/Rear Mech : Shimano Deore DX STI
Shifters : Shimano ST-M092 Deore XT STI Rapid-Fire 7 Speed
Freewheel : Shimano Deore DX Hyperglyde Cassette 12-28t 7 Speed
Handlebar/Stem : GT Duraluminium Superlight Alloy/GT All Terra Flip Flop Stem
Chainset : Shimano Deore DX STI SuperGlide46/36/24t
Bottom Bracket : Hatta Sealed Mech
Headset : Tioga 1 1/8 Oversize Chromolly, Triple Sealed mech with GT Alloy Locknut
Saddle : GT All Terra Competition Leather
Seat Post/Clamp : GT All Terra Heat Treated Alloy/GT Alloy QR Black Anodised Lever
Brakes : Shimano Deore DX SLR Low profile Front Cantilever & Rear U-Brake with Flex-Guard
Brake Levers : Shimano ST-M092 Deore XT 2-Finger with Cam Breaking Action

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There is some rust on the Frame, all the components will be removed/stripped/cleaned to get them working 100%.

I need to work out what todo about the rust on the frame, Ideally I think it needs to be stripped and re-painted but I think getting replacement graphics will be a problem.

Matthew


Last edited by matt@theforce on Mon Dec 10, 2012 12:48 am, edited 1 time in total.

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 Post subject:
PostPosted: Mon Oct 29, 2012 3:43 am 
Retro Guru

Joined: Wed Jan 19, 2011 3:20 am
Posts: 271
Location: Pacific Northwest USA
I would try .02 % Oxalic Acid in a kiddie pool for a couple of days before anything else. Will remove the rust and not harm the paint. Do a internet search, lots of information out there.


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 Post subject:
PostPosted: Mon Oct 29, 2012 4:07 am 
Dirt Disciple
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Joined: Thu Sep 22, 2011 9:36 am
Posts: 65
Location: Penistone/Peak District
Loki wrote:
I would try .02 % Oxalic Acid in a kiddie pool for a couple of days before anything else. Will remove the rust and not harm the paint. Do a internet search, lots of information out there.


Thanks.. Will do some research


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 Post subject:
PostPosted: Mon Oct 29, 2012 4:08 am 
Retro Guru
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Joined: Wed Apr 06, 2011 1:09 am
Posts: 986
Location: Ecosse
Nice bike!

Is that the first ever a-head stem??


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 Post subject:
PostPosted: Mon Oct 29, 2012 5:13 am 
Dirt Disciple
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Joined: Thu Sep 22, 2011 9:36 am
Posts: 65
Location: Penistone/Peak District
jonnymcenroe wrote:
Nice bike!

Is that the first ever a-head stem??


No idea if its the 1st but I understand its the 1st of the flip/flop stems


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 Post subject:
PostPosted: Mon Oct 29, 2012 10:28 am 
Retro Guru
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Joined: Mon Oct 22, 2012 12:24 pm
Posts: 790
Location: Wales, United Kingdom
Fantastic bike! I love these wild early nineties paintjobs that GT were using at the time. I've always lusted after the Avalanche, never the Zaskar (No idea as to why) :roll:.

I love how the paint matched stem (such a sucker for paint matching :)) echoes the lines of the top tube - gorgeous stuff!.


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 Post subject:
PostPosted: Mon Oct 29, 2012 2:19 pm 
Dirt Disciple

Joined: Fri Oct 12, 2012 8:08 am
Posts: 77
Location: Ayrshire
Nice bike! I had one of these in the early 90's. Bought it 2nd hand from a neighbour when I was about 14 and raced it for a while. Wish i still had it!!


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 Post subject:
PostPosted: Mon Oct 29, 2012 2:56 pm 
Retro Guru

Joined: Wed Jan 19, 2011 3:20 am
Posts: 271
Location: Pacific Northwest USA
matt@theforce wrote:
Loki wrote:
I would try .02 % Oxalic Acid in a kiddie pool for a couple of days before anything else. Will remove the rust and not harm the paint. Do a internet search, lots of information out there.


Thanks.. Will do some research


I bought mine off EBAY USA 2lbs for less than $10.00 usd. It only takes a tiny bit for a kiddie pool to get .02%(by weight) you just have to do the math to get the solution correct . Bikeforums.org in the Retro-classic forums has lots of threads on OA. Just neutralize the acid with Sodium Bicarbonate (baking Soda) when finished. BTW , nice bike, my Fav of the steel GT's for paint.


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 Post subject:
PostPosted: Mon Oct 29, 2012 10:33 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 22, 2009 11:09 am
Posts: 9399
Location: Devon
Also try cheap clear vinegar and a rough sponge. Worked wonders on an old saracen I had. Wipe clean afterwards. Will clear most surface rust ok.


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 Post subject:
PostPosted: Mon Oct 29, 2012 10:50 pm 
Dirt Disciple
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Joined: Thu Sep 22, 2011 9:36 am
Posts: 65
Location: Penistone/Peak District
Fantastic ideas all.

I'm going to start stripping the bike over the winter & clean it up best I can. Can't wait to get started :)

Matthew


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