Norton Tachometer Drive Gearbox 2:1If you look at drive end, and rotate clockwise, output/final drive is also clockwise distance holes 40 mmMade in EnglandPlease look at all pictures
Brake Drum plain Vincent. 5 Hole ID: 178mm Höhe Inside: 29mm 5 mounting holes middle for hub outside holes for mounting sprocket Made by Vincent - Vincent Motorcycles