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 KTM - 300 GS TVC
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Photo ou archives : Horville

Capacity : 300
Model : GS TVC
Production : 1992 -
Category : (Off-Road) Enduro


GS 300 TVC - 1992

The muscle man of enduro racing

The Austrian KTM marque is one of the great names in the off-road motorcycle industry. Since the 1970s, its output and the immense number of sporting victories it has won have entered it into motocross and enduro history. But with the 300 GS TVC, the Mattighofen factory moved into a higher gear.

A New Beginning for KTM

The KTM has always been a dedicated sporting machine, improved from year to year, right up to the time that a new basic design was called for. Setting aside a certain conservatism, the factory developed an entirely new machine in 1989. This ultra-modern 250 combines the best features of the competition and is a common basis for motocross and enduro. From this compact and ergonomic machine – its innovative engine has a double TVC valve on the exhaust – a 300cc version appeared in 1990.

Homogeneous Compromise

The GS 300 TVC supplanted the traditional 250 in the affections of many enduro riders. Within the dimensions of a compact and well-balanced 250, the stable and precise 300 offers the advantages of a larger capacity without the attendant inconveniences like noise and harshness, making it a most enjoyable enduro mount. It's just a shame that Erich Trunkenpolz (the "T" of KTM) passed away at the end of 1989, before he had a chance to witness this best KTM enduro bike in action.


Engine: 297cc (72x73mm) water-cooled single-cylinder two-stroke

Power Rating: 50 hp

Valves: automatic intake valves in the crankcase; two TVC valves in the exhaust

Fuel System: carburetor

Transmission: 5-speed, chain final drive

Suspension: inverted telescopic forks with 11.8 inch displacement (front); Pro Lever swinging arm with 12.6 inch displacement (rear)

Brakes: disc (front & rear)

Wheels: 21 inch (front); 18 inch (rear)

Weight: 245 lb

Maximum Speed: 100 mph

The KTM GS 300 TVC is the fruit of 20 years' experience in building enduro bikes and bas a most useful engine capacity.

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.