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Honda D2-492-02-20
Photo ou archives : F-M. Dumas

Capacity : 250
Model : NSR
Production : 1991 -
Category : (R) Racing


NSR 250 Grand Prix / Luca Cadalora – 1991



"In Grand Prix racing, the class to watch in recent years has been 250cc, where - unlike the limited field that exists in 500cc racing the races are more spectacular and there has been a wide variety of machines.


Consistent Performer

The current favorite in the 2 50cc class is the Italian Luca Cadalora. World 125cc champion in 1986 riding a Garelli, Cadalora raced in the 250cc class for three years with the Marlboro- Yamaha team and was third in the world championship in 1990 before joining Rothman's-Honda for the 1991 season. After Yamahas were withdrawn from the competition in 1991, the Hondas were untouchable, and Cadalora made the most of the situation with a very consistent performance.


Dramatic Evolution

Like the 500cc machines, 250cc racers have evolved remarkably in recent years. The last of the parallel twins have disappeared from the scene and two-stroke V-twins dominate the field nowadays. Atmospheric intake valves and mechanical exhaust valves are state of the art, as are twin-beam cast aluminum frames with underslung engines, inverted forks, and dog-leg rear suspension forks. Like their 500cc big brothers, the 250s are increasingly cornered in spectacular twowheel slides, with the rider crouched low over the tank, knees - and even elbows - scraping the track!



Engine: 247cc (54x54.5mm) liquid-cooled two stroke V-twin

Power output: over 750 hp

Valves: Atmospheric intake; mechanical exhaust

Fuel system: two 1.5 in carburetors

Transmission: 6-speed gearbox; chain final drive

Suspension: (front) inverted fork; (rear) swinging fork with single shock absorber

Brakes: (front) twin carbon fiber discs; (rear) disc

Wheels: magnesium (front) 3.25x17 in; (rear) 5.00 x 17 in

Weight: under 225 lb.

Maximum speed: over 160 mph


The dynamic duo of 250cc racing is Cadalora and Honda - both dominated the 1991 250cc championship.”

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 info@moto-collection.org for conditions and copyright.

© Tous droits réservés
François-Marie Dumas

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