Arco Dialex model 599 MX year?

Picked this up a little while back and trying to see if ive got a period correct engine for it. Cant find info on what year it could be though. Late 70's / early 80's im sure but anyone have a more exact date? 20200212_141239.jpg 20200212_135616.jpg


Well-Known Member
Usually those where HS50 powered, in the Dialex literature I have The bikes with the 5 as the first digit were setup that way. Wards version of that same bike was an HS50 as well. and I think that bike was right around the 1980.