Hinged petrol cap, winged tensioner type, khaki - suits Norton, Triumph also BSA M20 oil tank cap. A new reproduction hinged, winged petrol cap for 2 7/16" (approx 62mm) openings. Very well made. Suits Norton models 1, 16H, 18, 19, ES2, 7, 77, 13 1946 to 1954-5. The tanks changed during this period but the filler opening is the same. Also suits other makes eg Triumph NO WASHER Original Norton Part Numbers: A2/280 - petrol tank filler cap