Anyone wishing to find for his X1/9 wheels similar in design (but smaller in size) to the ones used on the Prototypo Abarth, check this:
Still operating and flourishing is Elio Nori tyre shop in Italy, introduced to me by Angelino Lepri back in the ’70’s. They can supply as it appears long ago discontinued wheels like the Campagnolo cross and the modular Dallara wheels!
I just found an other Italian firm producing historic type wheels and even sells them trough e-bay. It is the NTMWHEELS
Μόλις ανακάλυψα άλλη μία Ιταλική εταιρία κατασκεής ζαντών όλων των τύπων: δρόμου, ραλλύ,πίστας και σπόρ εποχής, που μάλιστα πουλάνε και απ’ευθείας μέσω e-bay