Ratier
A Propeller Maker's Detour
Paulin Ratier was a joiner by trade, not an engineer of engines, and when he set up shop in 1904 it was to carve wooden propellers for the earliest French aircraft. That business, founded in Malakoff on the edge of Paris, grew into something the French Air Force depended on, and later Aéropostale trusted Ratier propellers to keep the mail moving across the Sahara and the Atlantic. The company's factory later moved from Malakoff to Montrouge as the business expanded. Ratier dabbled in cars too, building a small sports model with a 750cc overhead-camshaft engine between 1926 and 1929, but that was a sideline. Motorcycles were not part of the plan at all, and wouldn't be for another two decades. What eventually brought Ratier into motorcycle manufacturing was not ambition but opportunity — the wreckage of another company's failure.
From Occupation Salvage to CEMEC
The real origin of the Ratier motorcycle lies in postwar improvisation. In 1945, in the chaos following the Liberation, the French army set up a semi-private operation at Neuilly-sur-Seine called the Centre de Montage et de Réparation, tasked with refurbishing German motorcycles seized in France and in the French zone of occupied Germany. Under chief engineer Jacques Dormoy, the outfit did more than patch up captured BMWs — it began reverse-engineering the missing parts and improving on the originals. In 1947 the operation was renamed CEMEC, the Centre d'Études de Moteurs à Explosion et à Combustion, and by 1946 five partners, Dormoy among them, had turned it into a private company continuing to build BMW-derived machines from a dwindling stock of salvaged parts mixed with new components sourced from French suppliers.
The result was the L7, a 750cc side-valve flat twin that owed its layout and much of its character to the BMW boxers it descended from, but was built with French-made components and French pride attached. The L7 proved itself with the police and military fleets that were its natural customers, and it even won the sidecar class at the Bol d'Or in 1952, a genuine competitive credential earned under the CEMEC name before Ratier ever touched the business. But CEMEC's finances did not hold. Sources differ on exactly how many motorcycles the company built on its own before the money ran out — some put the figure around 1,300, while others describe as many as 1,500 L7s produced under CEMEC — but the company filed for bankruptcy in 1954. Ratier, already established as an aeronautics subcontractor and looking for ways to diversify, saw an opening and took over the motorcycle operation.
The Ratier Years
Exactly when Ratier-branded production began is one of those details that different sources tell differently. Some accounts have the Ratier name appearing on CEMEC-built machines as early as 1955, which may reflect a marketing transition rather than a change in who was actually manufacturing the bikes. Other, more consistent sources — including Wikipedia, Motorcycle Classics, and Bonhams — place the actual start of Ratier's own motorcycle manufacturing at 1959, running through to 1962. Whichever date marks the badging transition, the manufacturing record under Ratier's own ownership is best dated from 1959, and the pattern is the same: a French firm took a German-derived design, refined it, and put its own name on the tank.
Under Ratier's ownership the range expanded beyond the old L7 side-valve formula. From 1959, when it built a range of ohv and side-valve twins, the company introduced overhead-valve models alongside the older side-valve line, distinguishing the new ones with the "C" designation for culbuté, meaning rocker-operated valves. Observers at the time did not hesitate to call these bikes BMW copies, and the family resemblance in the transverse flat-twin layout was obvious to anyone who'd seen a prewar or wartime BMW. Ratier's response was to lean hard into the fact that the overwhelming majority of the components were made in France — not a rebadging exercise but a genuine domestic manufacturing effort, built around an engine architecture that had proven itself reliable enough for the punishing use that French police and military work demanded.
The high point of Ratier's visibility, and of the marque's reputation, came in the years right around the turn of the decade, when Ratier motorcycles became the machine of choice for some of the most visible security work in France. President Charles de Gaulle personally selected Ratier motorcycles to equip his Garde Républicaine escort, reportedly because he did not want machines of German origin anywhere near his motorcade — a preference the French-built Ratier satisfied even if the underlying engineering owed a debt to Munich. For a company that had entered motorcycle manufacturing almost as an afterthought, having its machines chosen to escort the President of the Republic was about as prestigious an endorsement as French industry could offer.
Racing, Mostly by Inheritance
Ratier was never a factory racing outfit in the way some of its European contemporaries were, and there's no record of Ratier or CEMEC machines claiming major Grand Prix or championship results under their own name. The competitive credibility the marque could point to came largely from its CEMEC ancestry — that 1952 Bol d'Or sidecar class win was earned before Ratier owned the business, but it's part of the same bloodline and the same L7 platform that Ratier continued to build. Ratier's own overhead-valve models did see production-class racing entries, but the overwhelming majority of the bikes that left the factory were destined for a different kind of hard use: fitted with radios, sirens, and pannier bags for gendarmerie and police service rather than circuits. This was a marque built for institutional duty, not the podium, and its reputation rests more on durability under official service than on lap times.
The Landmark Machines
The Ratier L7, inherited directly from CEMEC, remained the backbone model — a 750cc side-valve twin built in single and dual-carburetor configurations, with total production across both the CEMEC and Ratier eras consistently put at around 2,500 units. It was the workhorse of French administrations, unglamorous but tough, the kind of machine that logged real mileage in real service rather than sitting for show.
The C6S, introduced in 1960, was the more modern statement: a 600cc overhead-valve twin capable of around 160 km/h from its 32 horsepower, built specifically with police work in mind and equipped with radio equipment that could be operated while the bike was moving. More than a thousand were built before production ended in 1962, and it was the C6S in particular that De Gaulle and his Garde Républicaine favored — the machine that best represented what Ratier had set out to prove, that a French-built motorcycle could match the German designs it descended from while carrying purely domestic credentials under the tank badge.
Ownership, Collapse, and the End of the Line
The chain of ownership here is short but tangled: CMR became CEMEC, CEMEC built the L7 and went bankrupt in 1954, and Ratier — already in the aeronautics parts business — absorbed the motorcycle operation in the aftermath. Whatever the precise start date of Ratier-branded production, the end is not in dispute. The business depended heavily on government contracts, particularly police and military orders, and when the state declined to renew its contract, the math stopped working. Only around 1,200 motorcycles were built in that final stretch before Ratier shut down motorcycle manufacturing altogether in 1962. By most accounts, Ratier's own manufacturing run lasted from 1959 to 1962, a modest span by the standards of the era's larger manufacturers — but one with an outsized institutional footprint given how many of those machines rode escort duty for the French head of state.
Ratier itself didn't disappear. The parent company simply returned to what it had always done best, building precision components for aviation. That business continued and grew, and today Ratier-Figeac operates out of Figeac producing aircraft parts, including components for Airbus — a continuity in aerospace that stands in contrast to the short, self-contained chapter the company spent building motorcycles.
Where Ratier Stands Today
There has been no revival of the Ratier motorcycle name. The company that still bears the Ratier lineage builds aircraft systems, not two-wheelers, and has not touched motorcycle production since 1962 — more than sixty years of silence on that front. What survives are the machines themselves: L7s and C6S models scattered mostly around France, held by collectors who understand exactly what they're looking at — a French answer to the BMW boxer, built under government contract pressure, ridden hard by gendarmes and soldiers, and for a brief moment trusted with the safety of a French president. They don't turn up often, and when they do, buyers who know the story tend to pay attention. Ratier was never a volume manufacturer and never tried to be one; its motorcycles were a byproduct of a much longer career in propellers and precision parts, and that origin is exactly what makes them worth remembering.