came upon these two OFMEGA marked cottered steel chainsets today on Italian ebay. these are the first such I have run across. brought up a question I have been wondering about with regard to Giostra production.

have seen a date given for the end of the Magistroni product line as 1965. did the launch of the OFMEGA product range begin immediately afterward or was there a time gap between the two? does anyone know what years the OMG name was in use?

calling T-Mar, iab et al...




OFMEGA Period 10 speed Cottered CHAINSET - Nice Unused Classic - Eroica model | eBay



Ofmega 145mm Cottered Chainset 46t Chrome Vintage NOS. | eBay