1930 Royal Enfield Model KThe 1930 Royal Enfield Model K represented the largest and most powerful machine in Royal Enfields revised AK model range for the 1930 season. Introduced as part of a rationalised lineup that replaced earlier numeric designations with lettered models, the Model K stood at the top of the catalogue as a robust 9. 76 hp side valve V twin designed for both solo and sidecar work. Powered by a 976cc side valve V twin engine (85. 5 x 85 mm bore and stroke),