 Even before this, in late 1970, and despite Taglioni's opposition to the idea, Spairani wanted the frame for Ducati's racer to be built by Colin Seeley, a well-known British specialist frame builder of the time.Seeley was asked to develop a racing frame similar to those he had built for Matchless G50 engines.Ducati sent some prototype crankcases for Seeley to work from and the new Seeley frame was ready in February 1971.