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 Yamaha - TDR
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Yamaha D2-492-14-06
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.

Motorcycle encyclopedia Moto Passion, realised by François-Marie Dumas, include almost 2000 photos presented with an exhaustive history of the motorcycles exhibited.

This unique collection has been realised with the participation of many specialists. With many thanks in particular to Yves Campion, Michael Dregni, Didier Ganneau, Jean Goyard, Helmut Krackowizer, Michel Montange, Christian Rey, Bernard Salvat, Mick Woollett, etc

One can order here

  • Original cards on paper (in french)
  • High resolution scans or original documents presented and signed with my name.

Please contact me at for conditions and copyright.

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François-Marie Dumas

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