grandpaul wrote: Did they use John Bull rubber wire ties or the solf aluminum ones?
Originally from 1972 the Norton Commando used black nylon cable ties. According to the parts book (in page Group 21) there are a total of 14. One of them happens to be listed as 15 inches long which I assume goes around the frame's top tube. The others are 7 3/4 inches and 5 3/4 inches long. The ones I like to use are .190 inch wide made by Thomas & Betts and called Ty-Rap high performance ties. These have a steel tang in the head that holds the cable tie together. They seem to be more infinitely adjustable and the back side of the tie rap that touches the wiring or frame is a lot smoother than the all nylon type ties and less harsh on the painted surface.