BENELLI SEI 900 (1979-1989)
906cc air-cooled, sohc inline-six, 127mph
The 900 arrived as that most overblown of decades, the 1970s, ended, as a more-ismore replacement to the previous 750. Both were loosely based on sohc Honda tech. If you still cling to the Top Trumps notion that more is better, then you need a six-cylinder bike in your life. The 750 is still the outright looker though.