Thanks for all the wonderful replies! In between drinking a coors light and watching the lone ranger i was looking on kuryakans site the only adapter i can find is a 3/8"-16 x M8-1.25 . From the picture it looks like the metric goes in fender until it stops against nut and 3/8" goes into light housing. Would it matter 3/8" 0r 5/16" as long as you have same light? Thanks Benny & Sandmann....
