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. NOTE: This bush is identical to t2160 except the bore is .0003" (3 tenths of a thou) over the finished running size. A thin walled bush will close up approximately half of the interference so this bush is designed to eliminate the need to hone/grind the bore to size after fitting. With a little care and perhaps some hand finishing this may be a better option for those who do not have access to the honing/grinding required with t2160. 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
