Oh Sei – 1983 Benelli 900 Sei

New CEO DeTomaso ( yes that one ) led the historic Benelli company to higher performance machines and the 750 Sei ( Six ) in 1973.  Benelli increased bore and stroke on the Sei to displace 906cc for the 1979 model year.  Simultaneously outrageous, exotic, handcrafted, and occasionally disappointing, the Sei was Benelli’s flagship until…