I found this on ebay for a price that I couldn't resist. I didn't know much about it but it looked nice enough and the fastback seat stays sealed the deal.
Here is the backstory written by the seller from the ebay Q&A section:
The frame has some details that may help pin it down, it definitely does not look like a Gitane.Dear sandranian, Interesting observation and i am going to post this so everyone can see it. my Husband (who ran the junior program at the time this was donated) got it from a mechanic in Chicago. The mechanic said that it was brought to Chicago by Laurent Fignon to use as a training bike and Fignon left it behind because he didn't want to bother taking it back. It had Gitane decals correct for the era as well as R 531C decals (in French), but the decals were pretty well torn up by the time it was donated and they were removed with acetone. The bike was equipped with Mavic cranks--the kind like Campy NR/SR (not the Starfish kind), Campy SR derailleurs, Simplex retrofriction shifters, and Mavic badged Modolo brakes. (also a very strange Simplex seatpost). i suppose it could have been built by someone else and dressed up like a Gitane, or have been built by a private builder and badged Gitane. All i know about the frameset is what my Husband and i have been told. It is a nice bike in any event. - ks2002ks
- 27.2 seat post
- English BB fits
- Supposedly Reynolds tubing
- It has a thick downtube, much more than my 531 bikes
Sloping Luged fork crown:
Fast back seat stays:
Vertical dropouts "BREVETT DEP"
"W" cutout in the bottom bracket
Downtube shifter bosses, and brazed on tab for the front derailleur