gitaneusa.com Forum Index » Vintage Gitane » Gitane Super Olympic 1975    View previous topic :: View next topic  Gitane Super Olympic 1975   Posted: Fri Sep 05, 2014 10:38 am Sebastienleonardo Joined: 23 Aug 2014 Posts: 8 Location: Paris Hello My name is Philipp, and even though I live in France, I'm mainly collection italian bikes. I do have a couple of French bikes (Lejeune and gitans) and this 1975 Gitan Super Olympic (the french version of the american Super Corsa, as I learned here). I bought this bike from its first and only owner and it is in very nice original conditions with few signs of use. It comes with the original Nuovo Record Group (pat. 75), 3TTT Stem and bar, "Super Champion competition - arc en ciel" rims on high flange record hubs and even the bar tape is original. I found this forum always very helpfull, so (and because this is my first post here) thanks to those who run it for their precious work! thank you and cheers from Paris Philipp Last edited by Sebastienleonardo on Mon Sep 08, 2014 11:55 pm; edited 1 time in total 1975 Super Olympic   Posted: Fri Sep 05, 2014 7:25 pm verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area Nice bike and great pictures. It's a "Super Olympic" model with Campagnolo brakes. The Olympic models were the same bike except they had MAFAC Competition brakes. _________________ 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: Sat Sep 06, 2014 5:58 am Sebastienleonardo Joined: 23 Aug 2014 Posts: 8 Location: Paris Thank you Chas, Yes, it is all N.R... with the first generation "flat" tension levers on the brake calipers... cheers ph Reynolds 531 Tubing   Posted: Sat Sep 06, 2014 1:13 pm verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area One other thing, the frame is most likely made of a lighter gage (thinner wall thickness) Reynolds 531 tubing than was used on the standard production bikes. Most French Reynolds 531 production models used 1.0mm x 0.7mm wall thickness tubing on the 3 main tubes. This frame may have 0.7mm x 0.5mm seat and top tubes with a 0.9 x 0.6mm down tube. If it has a 26.6mm seatpost then it's definitely made with the lighter tubing - but just because the seatpost is 26.4mm doesn't mean that it's not. _________________ 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: Sun Sep 07, 2014 4:47 am Sebastienleonardo Joined: 23 Aug 2014 Posts: 8 Location: Paris Interesting! It is 26.4 though... don't know if there is any other way of checking the wall thikness... thanks for your insight! cheers ph   Posted: Sun Sep 07, 2014 2:13 pm verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area Sebastienleonardo wrote: Interesting! It is 26.4 though... don't know if there is any other way of checking the wall thikness... ph If the seat lug clamp looks like this then the seatpost should be a 26.6mm. Notice how the "ears" of the lug are almost touching and the split is distorted. Tightening the lug too much so that it will fit a seatpost that's too small can result in a cracked lug. If this is the situation, the lug needs to be rounded and reamed to the proper size. Without the proper tools and someone who knows what to do the job, I'd leave it alone. _________________ 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: Sun Sep 07, 2014 11:56 pm Sebastienleonardo Joined: 23 Aug 2014 Posts: 8 Location: Paris Hello Chas, I think there was a misunderstanding, the seatpost of my gitane has the right diameter, it's the original one. I just wanted to know weather there is another way to find out which tubes have been used, as you said, in some cases there were some thinner ones used. but thank you for your explanation! Philipp Identifying Tubing   Posted: Mon Sep 08, 2014 12:26 am verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area Other than scraping the paint to look for the sizes stamped into the Reynolds 531 tubing, the seatpost size in one way to try to figure out what wall thickness tubes were used. Reynolds 531 stamped into tubes: Tubing wall thickness stamped into tubes: Reynolds used BWG Numbers - British Wire Gage for wire, sheet metal and tubing. The 20/23 numbers = 0.89mm x 0.64mm which is rounded off to .9mm x .6mm wall thickness. 1.0mm x 0.7mm was the most common Reynolds 531 tube set used on French production frames. These used 26.4mm seatposts. 0.9mm x 0.6mm seat tubes should use 26.6mm seatposts but frequently had 26.4mm seatposts. That's why I suggested checking out the seatpost to determine the tubing wall thickness. _________________ 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: Mon Sep 08, 2014 12:36 am Sebastienleonardo Joined: 23 Aug 2014 Posts: 8 Location: Paris now I understand! As I have the 26.4 seat post without the seat tube beeing squeezed, I guess this frame has the 1.00 x 0.7 tube set. Thank you so much for your help! ph   Posted: Mon Sep 15, 2014 8:21 pm scozim Joined: 26 Sep 2008 Posts: 629 Location: Ellensburg, WA Nice score - that's a beautiful looking Gitane _________________ 1984 Gitane Sprint 1984 Gitane Tour de France mid-1970's Gitane Olympic Plus many more http://eburgcycling.blogspot.com   Posted: Mon Sep 15, 2014 8:22 pm scozim Joined: 26 Sep 2008 Posts: 629 Location: Ellensburg, WA Nice score - that's a beautiful looking Gitane _________________ 1984 Gitane Sprint 1984 Gitane Tour de France mid-1970's Gitane Olympic Plus many more http://eburgcycling.blogspot.com Gitane Super Olympic 1975     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 1 of 1   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.