Gasket for adapter plate cylinder -J&G 2% special by WT- for mounting Polini/Malossi 210 cylinder (Ø68.5mm) on engine case PX80-150

1.5mm aluminum spacer / gasket. Used in conjunction with the adapter plate to convert 200cc cylinders to PX80-150cc engine cases.
The spacer seals the screw connection of the adapter plate to the cylinder.