MBA, produced in Italy from 1975 to 1990, was a racing motorcycle manufacturer founded as Morbidelli-Benelli Armi to build customer replicas of the successful Morbidelli Grand Prix bikes. The brand specialized in lightweight 125cc and 250cc two-stroke GP motorcycles, including models such as the 125 GP and 250 GP, and achieved major success in world championship racing during the late 1970s and 1980s. Characterized by high-performance engineering and strong competition heritage, MBA became one of the most successful privateer racing motorcycle brands of its era.