KTM, Malaguiti Grizzly, LEM 50 cc Air-Cooled Franco Morini S5. E & S5 N Piston Kit 39mm. LEM CR2 and early LX2 also Cayman Quad S5E (cast iron cylinder) no reed block. A new standard size 39mm piston kit, to fit the MoriniS5E & S5N Engines (this piston has no ports on the inlet side so isNOT suitable for the GS engine).
