Royal Enfield 1937 “ Model J” 499 cc OHV frame & engine # 55761
The Redditch based Royal Enfield firm entered the motorcycle business as early as 1898: In the early days engines from De Dion powered their tricycles and quadricycles; Minerva supplied the power for the first motorized cycles.
In the years before WW I the company was very successful with light Motosacoche-engined V twins.
These machines were equipped with the famous Enfield two-speed gear, involving twin primary chains.
In the rear wheel hub a rubber cush drive was fitted, to take the punch out of the chaindrive.
This cush drive was to be incorporated into all Royal Enfields until the very end.
The 1937 range consisted of no less than 18 models, ranging from a 148cc OHV midget to a 1140 cc V-twin giant.
The 84 x 90 mm “J” we offer here has a four speed gearbox with foot change.
The machine has dry sump lubrication and the oil is carried in a sump extension.
The handlebars are mounted in rubber and ignition is by a Lucas battery-coil system.
The machine is in authentic and unrestored condition and she’s a fine runner.