The Frigerio brothers did not subcontract to the Austrian manufacturer, but superseded it, gaining the authority to use the brand.
This fact speaks volumes regarding the Frigerio brothers' abilities and is a definitive affirmation of their skills. It is for this reason that we believe that the Frigerio-Rotax produced after this agreement, should be considered a product of the Fragerio brothers' talents and can not be compared either positively or negatively with the remaining output from Graz.
Not even the smallest component of the new Frigerio-Rotax was manufactured either by or on behalf of the Austrian make, whose market share in the intermediate engine capacities came to an abrupt and definite halt in 1975.
The Frigerio-Rotax brand represented a courageous gesture in a time when a terrible recession was taking in this sector. Designed with care and set up paying great attention to detail, these machines managed a fair amount of commercial success and their presence on the motorcycle scene continued for many more years even though they had reached their peak.
Puch's history therefore continues only with the 50cc and 75cc models, for which it continued to offer support and assistance for a few more years.
Aided with great professionalism by the Frigerio brothers and raced by ace riders of that time, these small models gathered for some years great successes and amazing victories.

1976 – In the last few years of its existence Puch concentrated all its efforts on the smaller engine capacity motorcycles. This was precisely the sector where they had not been particularly successful in the past; it was almost as if they were trying to redeem themselves in this, the final chapter.
This difficult undertaking was duly rewarded and Puch wrote the most successful part of its history in the small engine capacity classes.
Following the success of the previous season, a souped up version of the 75cc (48mm x 39,7mm) was made available to the public. It had a cast iron barrel with four transfer chambers, an Elko piston with two helicoidal rings and a 26 mm Bing carburetor with an output of 16,5 hp at 11.500 rpm.
All components were revised and improved from the lightweight 32mm Marzocchi Tfi with magnesium sleeves to the rear gas shocks which were fitted at a more severe angle.
Attractive also the cosmetic changes comprising a red frame and fuel tank, black silencer passing high up under the fuel tank, conical Grimeca hubs and Akront rims.