Engine unit 249 cc. OHV manufactured by JAP exclusively for OK Supreme, embodying new type crank case, big end, cylinder and head, totally enclosed push rods and valve gear with quickly detachable covers for easy adjustment. Phosphor bronze inlet valve guide, needle roller rocker bearings, wet sump lubrication by Pilgrim, mechanical pump. Amal carburettor.
Gearbox Burman 3 speed, with foot control and multiplate clutch.
Frame Our new all brazed frame (semi-cradle type) built of A & P TT tubing, giving perfect steering and stability. Webb forks with shock absorbers. Improved central non-rattle stand. Built in battery and oil tank. The whole of sturdy design.
Tanks Welded steel. Petrol 3 gallons. Oil 3 pints.
Equipment ideal for utility machine. With heavy central ribbed mudguards.
Lighting and ignition Lucas 6 volt ignition and lighting 30 Watt dynamo. Large battery mounted in Hughes’ patent shock absorbing carrier. Large headlamp for touring.
Brakes 6 inch front and rear forged steel drums with finger adjustment.
Tyres 26 inches. x 3.00 inches Dunlop.
Transmission chain throughout. All chains excluding the rear run in oil.
General chromium plated handlebars, large Dunlop saddle with 3 point fixing, full kit of tools in toolbox of registered design, large knee grips, licence holder, electric horn, low level exhaust pipe.
Finish the machine is finished in black enamel on anti-rust base. The petrol tank is lined out in gold. Handlebars, rims and the usual bright parts chromium plated.
Flying Cloud Model G/36 Code word "GESIS" As model GT/36 except with a 4 speed totally enclosed gearbox.
Source: ok-supreme-muv archive