O-ring MALOSSI Ø51.5 X 55.06 X 1.78mm for cylinder head kit 50 / 70cc Ø40 / 47mm

Here is the MALOSSI spare O-ring, dimensions Ø51.5 X 55.06 X 1.78mm thick, intended for cylinder heads for kit 50 and 70cc in diameter 40 & 47mm. An essential part for the refurbishment of your engine compression in case of leakage, wear, disassembly ....