gitaneusa.com Forum Index » Vintage Gitane » a alan/gitane olympic record from 1976 Goto page Previous  1, 2    View previous topic :: View next topic  Re: Alan Frames   Posted: Wed Oct 05, 2011 10:47 am logarto Joined: 18 Feb 2008 Posts: 56 logarto wrote: (Now if I could only remember which one wanted the 23.0 seatpost and which one wanted the unique quill seatpost??) As long as my brain is working, the Peugeot Carbon was clearly made in the same place but not quite identical to the Vitus three tube and there was no Peugeot nine tube Carbon product. I'm thinking that the quill seatpost was associated with the Peugeot and that the Vitus Carbon was 23.0. I only saw one Alan Carbonio ever and it came with an off brand 25.0 post that I was quite familiar with at the time. We sold the snot out of that size in American Classic seatposts because they were advertised to be substantially lighter than Super Record or Dura Ace, but according to weight weenies dot com they actually weren't. One advantage to all these bikes is that you can't turn them into a fixed gear they all had vertical dropouts. If you are a big enough dickhead there is nothing stopping you from painting the chain?   Posted: Wed Oct 05, 2011 1:43 pm tchikiboum92 Joined: 02 Sep 2011 Posts: 14 Location: PARIS FRANCE Just to feed your topic: some VitusPlus Carbone ads from French magazines (aug-sept 1984): Mr.Dumas (Ateliers de la Rive-Vitus) left hi-tech process to BADOR 50.000 frames "glued" 1979-1984, mainly to US export? ...and about pre-WWII screwed octogonal Caminargent ...and about 1984 Peugeot PY10FC 3tubes carbon _________________ if PROS have built TITANIC...only an AMATEUR has built NOAH's ARCH visit my french-speaking cycle blog http://velos-mont-valerien.over-blog.com/ Carbon Fiber Peugeot Vitus on eBay   Posted: Wed Oct 05, 2011 10:56 pm verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area There's a carbon fiber Peugeot/Vitus on eBay with a broken seat lug. Seller says "easy repair"! http://tinyurl.com/43adsgd Scroll down to the pictures of the seat lug. _________________ 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   Posted: Thu Oct 06, 2011 12:04 am tchikiboum92 Joined: 02 Sep 2011 Posts: 14 Location: PARIS FRANCE "easy repair" +1 this frame belonged to mike tyson? The last chance is a seat tube with expander nut same as Atax on my Peug... non-Gitane PGN10T Such a 80ies seat tube (Atax, Suntour, American Classic...) is impossible to find, even in ebay Singapore. _________________ if PROS have built TITANIC...only an AMATEUR has built NOAH's ARCH visit my french-speaking cycle blog http://velos-mont-valerien.over-blog.com/ questions   Posted: Sun Oct 09, 2011 10:52 am Kinst VonSterga Joined: 26 May 2008 Posts: 153 Location: Hillsboro, Oregon USA is there a clear coat on top of the aluminum or is it just a shiny anodized finish? did the pro Gitane team ever race Alan frames during any of the European classics? Re: Alan Frames   Posted: Sun Oct 09, 2011 7:34 pm verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area logarto wrote: One other old timer who sees this one my way Chas. I've recanted my testimony... I have no dog in this fight! Read my sig. _________________ 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 Re: questions   Posted: Mon Oct 10, 2011 7:55 am logarto Joined: 18 Feb 2008 Posts: 56 Kinst VonSterga wrote: is there a clear coat on top of the aluminum or is it just a shiny anodized finish? did the pro Gitane team ever race Alan frames during any of the European classics? They were represented as being just anodized and the way to restore the finish was said to be olive oil back in the day. That brings up another interesting topic. I've "baked" the anodizing right off every BMX Part that I ever used on a road or mountain bike, usually in just two or three summers of direct sunlight. (I loaded up on the chainrings at a buck apiece when they went out of style in the mid 1980s.) But a co-worker here has a 1979 Ducati with gold anodized hubs that look as good as new. The last Vitus 979 I saw was the robins egg blue and I couldn't tell if it had faded or not; a year or so ago I saw a rose one indoors at VeloSwap and there was no doubt that it had been out in the sun. The tops of the tubes were much lighter than the bottoms. I am glad that I've not encountered a butterscotch Vitus 979 in this condition, I used to just love that color. So in my limited experience there is anodizing that holds up to the sun and the other kind. Perhaps the former involves a UV-inhibiting clear coat? And people were doing this as far back as 1979? The moral of the story is that if you ever come across the anodized Campy BMX parts in good condition, don't even THINK of using them. People used to pay absolutely sick money for that stuff on fleabay. It was as good as Nuovo Record in the cranks and hubs and they ended up giving it away. Aluminum Anodizing   Posted: Mon Oct 10, 2011 10:48 am verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area Aluminum anodizing consists of aluminum oxide which is fairly inert and corrosion resistant. The aluminum anodizing process is somewhat like electroplating except the electric current and chemical bath converts the aluminum surface to aluminum oxide. The anodized layer can range from several microns thick to over 0.005" thick. It's clear and transparent at thiner levels but will turn gray to dark brown when applied in a heavy layer. This is also called hard anodizing. The "ceramic" rims are nothing more than hard anodized since in that form, aluminum oxide IS a ceramic! Thin anodized layers will mimic the finish underneath. If it's polished the finish will be shiny. If it's satin finished that's how the anodizing will look and so on. There are processes to modify the anodized surface to change the appearance or increase the corrosion resistance and so on. The anodized surface is very porous. Colors are produced with chemical dyes which soak into the surface. Some are more light resistant than others plus the type and amount of sealing treatment used afterward can have an effect too. This explains the sealing process: http://aluminumsurface.blogspot.com/2009/04/why-sealing-process-is-so-important.html Some aluminum alloys respond better to anodizing than others. If the alloy is not completely homogeneous (not completely mixed together) the anodized layer will appear blotchy. One other thing, aluminum, especially pure aluminum has a high level of corrosion resistance. That's because when a newly produced bare surface is exposed to oxygen in the air, it immediately starts to "corrode" forming an inert layer of aluminum oxide (natural anodizing) which then provides a measure of future corrosion resistance! _________________ 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 a alan/gitane olympic record from 1976     gitaneusa.com Forum Index » Vintage Gitane You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT - 8 Hours   Page 2 of 2   Goto page Previous  1, 2 All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First  Select a forum Gitane USA----------------Vintage GitaneGitane RacingModern GitanePro Racing - Classics/Giro/Tour....Owner Gallery   Powered by phpBB © 2001-2004 phpBB Group Designed for Trushkin.net | Themes Database.