O-ring surrounding viton racing cylinder head 103.7x2.62x0 for kit ATHENA 50, 70cc, high engine origin euro 1 minarelli am6

Reinforced viton cylinder head surround gasket racing dimension:

103.7x2.62x0.0 in type OR NBR70 for high engine aluminum ATHENA 50 & 70cc minarelli am6 euro 1 and for other applications, delivered by one piece.

Mounts on:

-All ATHENA kits from minarelli am6
-High original euro 1 engine in aluminum from minarelli am6