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 Yamaha - 250 TDR
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Photo ou archives : F-M. Dumas

Capacity : 250
Model : TDR
Production : 1987 - 1991
Category : (On-Off) Dual Purpose


250 TDR -1987

A good idea lacking power

In the beginning were the trail bikes, civilized off-road motorcycles that were as usable on the highway as in the rough. From that starting point, it was only a short step to the creation of multi-purpose machines with the power of sports bikes.

A Special Hybrid

It began with the creation of a wild racing formula. The machines were run over mixed courses that were half dirt trail/half blacktop. On the course, the best riders from three disciplines - motocross, enduro and speed events, confronted one another. For this type of event, very special hybrid motorcycles were evolved, taking their basic concept from motocross and their road equipment from clubman racing: wide-section tires, closefitting front mudguard, large diameter disk brakes and relatively short-travel suspension. Aggressive and endowed with diabolical handling, these racing machines quickly inspired modification kits for trail bikes.

Overdose of Caution

That was all it took to start a fashion and Yamaha, unveiled in 1987 the TDR. The idea was a good one but the Japanese factory was too cautious in limiting itself to a capacity of 250cc, trying to satisfy at the same time its domestic market for under-250cc machines and the strange requests coming from the French market. The TDR was widely applauded for its concept but failed to become a bestseller because of its engine, which lacked muscle.


Engine: 239cc (55.2x50mm) water-cooled twin-cylinder

Power Rating: 44.3 hp @ 10,000 rpm

Valves: two-stroke/automatic inlet valves in crankcase

Fuel System: two 28mm carburetors

Transmission: 6-speed; final drive by chain

Suspension: telescopic fork, (front); swinging fork with mono-damper (rear)

Brakes: 12.5 inch floating disk (front); disk (rear)

Wheels: 100/90x18 inch (front); 120/80-17 inch (rear)

Weight: 302 lb

Maximum Speed: 108 mph


Despite a determined promotion campaign centered on the "TDR Fun Cup, " the TDR 250 failed to make its mark.

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.