The MV Agusta 250 B ("Bicilindrica") had a 247 cc (53 × 56 mm) four-stroke parallel twin engine, a battery ignition system, two carburetors and a five-speed gearbox. Its 19 hp were enough to achieve 135 km/h. But the price was too high, and the characteristics were not the most impressive, which is why by the end of 1970 the total number of released three versions barely reached 1,452 units, and the model gave way to another generation, a much more successful MV Agusta 350 B with engine bored out to 349 cc.