For Sale: stocko shocko cyclinder jug only
I had this on an express and cracked the piston after I sized. The cylinder is in very good shape. Very very very small roughage you can get out easy with a grind stone. But since this is hard to find a piston for, this would be for someone who would bore the cylinder to another piston size you can get. And if your going to go that far you might as well open the exhaust port and intake then have yourself a ripper.
Or you could find a 44mm piston from 50cc.nl