gitaneusa.com Forum Index » Vintage Gitane » Simplex JUY 51 or earlier rear derailleur    View previous topic :: View next topic  Simplex JUY 51 or earlier rear derailleur   Posted: Wed Mar 23, 2011 4:31 pm mcrane Joined: 29 Sep 2010 Posts: 8 I just acquired an early Simplex JUY 51 or earlier rear derailleur. the reason i say possibly earlier is all 51's I've seen online show the pulley wheels with chain grooves. the one I just got has flat steel pulleys. It's NOS as I don;t see any wear on the pulley wheels or that it has been mounted ever! A simple great looking old derailleur anybody know much about them?[img][/img] _________________ Mike 1977 Peugeot PY10 1965 Peugeot PX10 2000 Bianchi Daytona 1986 Gitane Tandem 1970 Gitane TDF (in process of restoring) 1974 Gitane TDF (frame and fork only) 1986 Ciocc Old Simplex Derailleur   Posted: Wed Mar 23, 2011 10:12 pm verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area Nice find. I suspect that it's a different model or year than a Simplex JUY 51. Here's a copy of the 1954 Simplex catalog showing a JUY 51. http://www.disraeligears.co.uk/Site/Simplex_1954_-_catalogue_page_3.html Your derailleur looks more like this Tour de France model. http://www.disraeligears.co.uk/Site/Simplex_1954_-_catalogue_page_4.html ...or this 2 speed model Tour de France. http://www.disraeligears.co.uk/Site/Simplex_1954_-_catalogue_page_6.html The "claw" mounting bracket shows signs of serrations from a wheel nut. The derailleur may have been mounted on a bike but not used. _________________ 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 Mar 24, 2011 5:07 am mcrane Joined: 29 Sep 2010 Posts: 8 Chas; Thanks for the observation I had to look again and yes, I did notice the seration from a previous axle nut. After grabbing the magnifying glass I did find in very small stamp the following around the pulley bolt. BTY SGOG Does that help with anything as far as year and model? Any ideas as to when this might have been produced? Just a great old piece that probably isn't worth all the trouble but is what keeps me so interested in the French bikes and everything related to them. Always something new to learn! I really appreciate you and everyone's help and thank everybody for their contributions. _________________ Mike 1977 Peugeot PY10 1965 Peugeot PX10 2000 Bianchi Daytona 1986 Gitane Tandem 1970 Gitane TDF (in process of restoring) 1974 Gitane TDF (frame and fork only) 1986 Ciocc BTY SGOG   Posted: Thu Mar 24, 2011 10:57 am verktyg Joined: 14 Jan 2007 Posts: 2814 Location: SF Bay Area Could it say "BTE S.G.D.G."? BTE S.G.D.G." is an abbreviation found on many products made in France. "BTE" is short for "breveté" which means "patented". "S.G.D.G." stands for "Sans Garantie Du Gouvernement" which means "without government guarantee". In the US this would be the equivalent of "Patent Pending" which means absolutely nothing and is slightly illegal to use. You either hold a patent or you don't! Did you happen to check out the Disraeli Gears links in my previous message? I think that it's one or another of the Tour e France models. _________________ 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 Simplex JUY 51 or earlier rear derailleur     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.