I have a genuine BSA +.020" split skirt 6.5-1 (concave top) piston. The part no. as you can see is 67-425, the piston has the casting number 67-426 plus 12/58 stamped in the top. It has no pin or clips.
The thing is I only have the one piston, so does anyone by any chance have a matching one for sale. Alternatively I will sell this piston to someone who has a matching one.
A long shot I know but its not much good to anyone if there are two of us who only have one piston each.
