Piston Monark Albin M42 500 cc OHV (Top valve) 79,50 mm

This piston is 79,50 mm, not piston pin or rings Cyl.dia STD 79,00 mm Comp.height 34,00 mm. Flat piston top Piston length 78,00 mm Piston bolt Dia, 20,00 mm. Length 70,00 mm Piston rings 2,38 x 2,38 x 4,50 mm Made by Ateko, Sweden