| | | | | | | | | 85-86 Gitane Defi threading | | | | | |
Posted: Sun Feb 03, 2013 8:59 am |
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Therealkyle |
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Joined: 02 Feb 2013 |
Posts: 1 |
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Hey everybody, there's a nice looking 85-86 Gitane Defi in my size in my local craigslist. I just had a question about the threading on the bike before I pull the trigger. Is the bottom bracket, headset, etc french threaded on this, or had they moved to english threading by then? Any other funky proprietary french parts i should be aware of on this bike? I know velo orange sells some french threaded stuff, but itd be nice to know before hand either way. thanks |
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Posted: Sun Feb 03, 2013 3:38 pm |
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gmany |
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Joined: 20 Aug 2009 |
Posts: 47 |
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I'm certainly not an expert, but I think by 85-86 they had moved to english threading, perhaps someone else will chime in to confirm. |
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_________________ Garrett Miles
Saint Louis, Missouri |
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| | | | | | | | | British/ISO threads | | | | | |
Posted: Sun Feb 03, 2013 8:54 pm |
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verktyg |
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Joined: 14 Jan 2007 |
Posts: 2814 |
Location: SF Bay Area |
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These bikes have British/ISO BB and headset threads with metric diameter tubing.
The seatposts are usually 26.4mm or 26.6mm which is correct for metric seat tubes.
They use 22.2mm inch size stems. |
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_________________ Chas.
SF Bay Area, CA USA
==============
1984 Criterium
1969 TdF
1971 TdF
1974 TdF
1984 TdF x 2 Bikes
1970 SC
1971 SC
1972 SC
1984 SC
1984 Team Pro
1985 Professional
1990s Team Replica |
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Posted: Sun Feb 03, 2013 9:44 pm |
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Wisey |
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Joined: 19 May 2009 |
Posts: 631 |
Location: Brisbane, Australia |
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Yep, what Chas said.
I've owned a number of the 85 bikes and they are all standard Brit BB etc etc.
The only proprietary part that I can think of the the plastic derailleur cable guide under the BB shell. It is a Vitus design and has a plug that fits into about an 8mm hole drilled in the frame. They are hard to find these days, but I have a box of them that I sell to guys here for $5 plus postage.
The other alternative is to take it to your LBS and have them drill a hole and tap it (4mm) to take a standard design cable guide.
Of course, if the guide is in good condition, then it will probably last for another 10 or 20 years anyway.......
So, it's not exactly a big issue.
On the Defi, just check that the internal brake housing isn't rusted out.
Also check the front fork tips for cracks. I've never seen a Defi split, but I've seen three of the Victoires (next model down) crack through vertically the front tips. Bad batch of steel, perhaps?
Cheers,
Paul |
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_________________ Kind Regards,
Wisey
Delta Dreamin' |
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