Robert Ducheron Handmade bike made in Paris. Apparently from 50 with the mafac dural forge with hole oil. The frame have been modified for rear derailleur and for bigger wheels. I think it made for 650 wheel at first then 700. ? double saddle clamping, front monolugs, headset Stronglight Size World shipping Ask me for more infos or photos Like Rene herse Alex singer jo routens dujardin goeland nivex cyclo
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