Gudgeon pin / small end bush, free fit for Norton early twins, 500cc 600cc. Length: 1", outside diameter: 13/16" with a longitudinal groove bisecting the oil hole. Please note: these bushes are made to suit the standard norton gudgeon pins which have a nominal size of 11/16".
Original part numbers:
D1A2/159; E4102; T2160 - small end bush