Haven't ridden in years - used to be my primary transportation.
Had: Honda XL100 (first), Yamaha 125 (street legal enduro can't remember the letters), Honda CB550F Supersport and a Suzuki 400 (same situation as the Yamaha). All were from the 70s with the possible exception of the Suzuki which may have been early 80s.
Recently looked that new Bonneville T100s from Triumph but decided to stick with 4 wheels.