bmxbozo
By the Schwinn dating system it is 1981 but others think 1983 by the advertisement in the BMX catalogue.The frame is definitely Japanese made but the format for the s/n is not the accepted Japanese format but the location is correct option. Variances in the Japanese format I cannot see. The story behind what happened with the supply of these frames can probably be only answered by employees of Schwinn at the time. I consider that would be within the BMX supply line and bare in mind the what was happening with Schwinn.
When I joined this forum I thought I had a King Sting in this frame. I obviously don`t as you don`t have a Cimarron.
crumbing not so much