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 Victoria - 500 KR 9 Fahrmeister
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Victoria KR 9 Fahrmeister motocyclette motorrad motorcycle vintage classic classique scooter roller moto scooter
Photo ou archives : D. Ganneau

Capacity : 500
Model : KR 9 Fahrmeister
Production : 1934 - 1938
Category : (R) Street Bike


500 KR9 Fahrmeister -1937

Wasted effort

Martin Stolle, who designed the original BMW flat twin, worked at Victoria in 1923 and 1924 to develop their own-make flat twin engine to succeed the BMW units they had previously brought in. Stolle returned to Victoria in 1934 to design the highly-original 500cc KR8.

Lack of Development

The engine was an inclined, parallel-twin built-in unit with a four-speed transmission: This powerpack was concealed behind detachable pressed-steel side panels, which incorporated leg shields. Victoria needed the new model to be a sales success. Though Stolle counselled against it, Victoria rushed the KR8 onto the market before it had been properly developed, and it was a disaster. Badly lubricated and naturally poorly cooled,

the engine shattered like glass.

A Bad Reputation Sticks

Desperate measures were called for. In 1936, Victoria brought out the KR9, a version of the KR8 which had been redesigned for maximum reliability. It had an aluminum cylinder head, still with side intake valves, but also with overhead exhausts, adopted in the interests of improved cooling. Few other machines - Martinsyde in Britain, a few American makes and Guzzi in Italy - have used this unorthodox valve disposition. Priced at 1295 Reichsmarks, the KR9 was well-positioned on the German market, but the bad reputation of the KR8 had stuck, and the public preferred the classic KR600 flat-twin: more costly, but of proven reliability. Victoria didn't argue with customer choice, and withdrew the problem child in 1937, to concentrate on small displacement two-strokes.


Engine: 49&c (60x88mm) air-cooled transverse flat-twin four-stroke; coil ignition

Power Rating: 15 hp @ 4300 rpm

Valves: side intake, overhead exhaust

Fuel System: carburetor

Transmission: 4-speed, enclosed duplex chain final drive

Suspension: girder forks (front); rigid (rear)

Brakes: drum (front & rear)

Wheels: 3.50xl9 inch wire (front & rear)

Weight: 386 lb

Maximum Speed: 60 mph


In order to improve engine cooling, the KR9 reversed normal F-head design and used overhead exhaust valves.

Le fichier Moto Passion réalisé par François-Marie Dumas réunit près de deux mille photos accompagnées d'un historique très complet des machines présentées.
Il sera progressivement mis à jour ici et toute information complémentaire est la bienvenue sur info@moto-collection.org.

Cette documentation unique, qui constitue sans doute l'encyclopédie la plus exhaustive jamais écrite sur l'histoire de la moto, a été réalisée avec l'assistance de nombreux spécialistes dont principalement Didier Ganneau, Christophe Gaime, Mick Woollett, Jean Goyard, Bernard Salvat, Christian Rey, Yves Campion, Helmut Krackowizer, Michael Dregni, Michel Montange, etc. que je remercie ici.

Disponible sur demande :
- Les fiches originales sur papier
- Les photos et archives signées de mon nom en haute définition ou les documents originaux.
Me contacter sur info@moto-collection.org pour les conditions et droits d'utilisation.