The focus of this blog from the very beginning was on Bertin bicycles of what I consider the steel bike’s classic period from the 1950s to the early 1980s. Often that meant that racing and sport bikes were emphasized since these were often more valued and preserved compared to casual or utilitarian bicycles.
It was with interest that I received a request to confirm an identification of a 1970s period Bertin bicycle. This one had, tentatively, been identified by the new owner as a Bertin C 31. Manuel, in Germany, had acquired the bike to refurbish and possibly re-sell which is a not unfamiliar motivation for Bertin owners. What was unusual here was that the bike was not the more familiar diamond frame or mixte but a “dame anglais” with a “top” tube that paralleled the down tube. This type of frame is most typically seen on utilitarian bikes for town use but the C 31 was a sport bike which more typically would have had a mixte frame configuration.
Once I received photographs, I confirmed Manuel’s id of the bike, the first C 31 I have ever seen with that particular frame configuration.
The bike is largely original in configuration and equipment. From the Weinmann brake levers one could argue that the bike had previously had dropped bars but the flat bars, at the very least, seem period correct. Cleaned, polished and reassembled the bike looks like this:
Manuel has done a nice job bringing the C 31 back from neglect as can be seen in the following detail photographs:
The only problem this bike has is that it is too small for Manuel and so he has decided to sell it. I do not typically link to sales site but given the unusual nature of this Bertin, I am linking to his EBay.de add in case any of my readers would like to take the opportunity to make a bid. If any of you do take up the opportunity, good luck!