Ooh is this the one:
Die Brücke von Arles, van Gogh, Mikael Pedersen Poster Kunstdruck
That's the exact image I was thinking of (http://coolmainpress.com/ajwriting/archives/4418). This is what I was looking for:
(http://coolmainpress.com/ajwriting/wp-content/uploads/2014/07/die_br_cke_von_arles__van_gogh__mikael_pedersen_poster_kunstdruck_800pxw.jpg)
Fake bicycle poster with "Vincent van Gogh" background
And this is what made me think of Vincent van Gogh, because he did paint the background.
(http://coolmainpress.com/ajwriting/wp-content/uploads/2014/07/langlois-bridge-at-arles-with-road-alongside-the-canal_-the-vincent_van_gogh_800pxw.jpg)
Vincent van Gogh, Langlois Bridge at Arles
Someone added a rider and a bicycle over a crude copy of a van Gogh scene. No wonder I couldn't find it in the Musée d'Orsay!
Thanks to all who helped solve the puzzle for me by suggesting avenuses of investigation. Give Geocycle the big cigar!
There are an amazing number of impressionist works contains bicycles! Interesting comment on their symbolism in the late 19th and early 20th centuries. Lots of rural compositions as well. I'll keep looking.
There's something about the bicycle that caught the artistic imagination to an extent that the motorcar never did.