Douglas, renowned for the quality and reliability of their machines, presented this model N in 1912.  It is equipped with chain drive to a countershaft and secondary belt drive. The horizontally opposed twin has been improved by the addition of mechanically operated intake valves (up to and including 1911 the intake valves had been automatic).  The improvements were crowned by a victory in the 1912 Junior TT Race.  Starting is by means of pedals; the rear wheel is equipped with a free wheel.  Gear ratio of this single speed machine is 5 : 1.  This Douglas is in good, used condition and has participated in several London-Brighton Runs.