- Oct 19, 2005
I wonder if anyone has any experience of finding different length bearing spacers (part number 062070, item number 23 in the Norton 750 Commando parts book) in the rear cush drive sprocket hub, I have just dismantled one from a 1972 750 and found it to be 32 mm long, whereas I dismantled another of unknown origin and found it to be 36.5 mm long, the difference in length being the spacer part that buts against the bearing in the alloy hub when the two components are mated together. All of the dimensions of various hubs and sprockets I have seem to be the same. Does anyone know if there are different lengths for different years or model changes? Obviously the different lengths would require a different right side axle spacer and would move the rear wheel into a different orientation with regards to the centre position.