Custom NSU 250 Sportmax NSU 250 Sportmax SPECIFICATIONS, PRICE & IMAGES Engine: single-cylinder 250 c.c. o.h.c; drive to ca Ignition: coil. Transmission: primary gear train to four-speed gearbox; Frame: welded-up pressed spine type; swinging-fo1* Forks: leading link. Bike Features More Bike Specifications:ELF Motorcycle ProjectKawasaki GPZ 600R NinjaMoto Guzzi 500 C2V RacerTriumph Grand Prix 1947Megelli NakedItaljet DragsterSunbeam 500 1928Kawasaki GPz 750 Turbo (ZX750-E1) Prototype