Unknown cylinder jacket diam 84.1mm

Montesa NOS cylinder jacket diameter 82.45

Fantic 125 professionnal NOS cylinder head

Fantic 305 used but near mint cylinder head

Fantic 50 used but in perfect condition cylinder

Cylinder 38.8mm, round admission 12mm
Référence : 210136100

Fantic 50 used engine assembly (R & left central crankcases, cylinder, cylinder head and right case)