Norton Exhaust Nut/Finned Clip/Cooling Fin/Clamp early Type ID 1 5/8" = 43 mm Outer diameter at thread: 49mm500, 600 650 cc Dominator750 cc Atlas750 cc CommEarly 850 cc Comm. please look at all pictures
Norton Centre Stand early models Mounting Holes Diameter: 17mm Norton Commando pre 1971 Please see measurements in pictures before engine no.: 141783Paint not perfect