During my daily perusal of Fixed Gear Gallery, I came upon this Motobecane Super Champion submission. The owner is looking for more information about the model - says he can't find anything by searching on Google. Looks to be early 70s to me...
Possibly someone on the list with more knowledge about Motobecane than myself (I know almost nothing) would be willing to email the guy with some background on his frame? his email address is at the bottom of the description on the page: