 Matchless solved the problem by creating a limited-production, street-legal G50 CSR, by fitting the G50 engine into the G80CS Scrambler frame.The designation "CSR" "In AMC parlance stood for "Competition Sprung Roadster""[Bacon Roy, AJS and Matchless postwar twins 1948-1969, page 39, Niton publishing, ], Competition always referring to Scrambles in AMC speak.