I rode the 54t x 18t set up until I had a major heart related op in early 2016 but have kept up with the cycling, the 54t ring is now in temporary retirement and have fitted a 48t ring on since to give my Heart rate an easier time, I love riding this machine !
I have considered riding it with fixed but the Bottom bracket shells and axle has a little headache now and could do with a birthday gift.
Original wheel rims and hubs are quite hard to come by, nearly every other one I have seen is missing them, a dealer here in the South East (not Colin) had one for sale as a path racer without the original hub/rims for £2000 !!!
Pedal cranks, Brake calipers and if you are lucky pedals are all etched/engraved with De Dion Bouton.
I do a bit of bicycle work for Colin Kirsch as he is a friend of mine, he kindly gifted me some Vietnamese tyres for mine they are also hard to find and a bitch to fit. One of my other prized possessions that came on one of the bikes is an original Michelin tyre, I rode on it for a short ride but it started to de laminate so I removed it to preserve it.
I have a 1911 brochure somewhere showing the product range, brakes were an option but most came with a leather tool kit, I have a couple of different ones embossed with the De Dion Logo, original tools are rare and expensive and get snapped up by the car guys.
The brand was taken over post war by a company called Dilecta identified by the leblanc head badge, I have one of these also, all the originals were built at Puteaux Paris
We really are in the wilderness with these cycles as there is very little written about them compared to the De Dion Bouton cars and the early motorised trike. There is a bit of info on Ton Ton Velo depending on how good your French is, or how french your wife is, mine is from Rouen in Normandy !
I will endeavour to take some pics and post them when I get the time, I am no authority on these bikes but having owned a few of them over the years I have gained some knowledge through research and observation.
Salut Barry