The design of the awesome powerplant were taken from the legendary NSR500 racer. With a displacement of 249cc, in a V-2 cylinder format, it is regarded by many motorsports enthusiasts as a split version of the larger, V-4 cylinder, 500cc engine. Innovative features like a single-pressed crankshaft, rear-mounted carburetors with a throttle-sensing system, and electronically controlled porting, known as the RC Valve system, make it one of the most advanced liquid-cooled, two-stroke racing powerplants in the world today. The exceptionally rigid frame is an aluminum twin-spar type, as seen on racing machines. The rear swing arm is triangulated box-section aluminum unit, which is damped by a single shock absorber. The cowling has punched holes to reduce drag and improve handling. The NSR250 is raced by many top-ranked competitive teams and one of the most colorfully decorated racers seen during the 1990 and 1991 seasons. One such racer was the Repsol sponsored version NSR250 piloted by the very talented C. Cardus.