Numbered 1 to 2950 (approx). Bolt on seat stays with drawback type chainstays for rear wheel adjustment. Torque tubes from engine plates to rear wheel.
700 x 80mm beaded edge interchangeable with black enamelled rims. 2 security bolts. Black spokes with NPB nipples. Rear with separate rear sprocket carrier assembly. (dogged drive).
5” D section, unvalanced, front and rear. Rear with patented hinged number plate and mudguard rear section.
Petrol tank with double gold lined panels fitted between frame rails (flat tank). Single 2" external screw type filler. Brass lever petrol tap. Oil tank mounted on rear frame down tube across the frame with spring loaded filler to offside.
Numbered 26500 to 28500 (approx) - 4 valve 499cc with cast iron open valve cylinder head, parallel inlet valves and parallel exhaust. Rebound spring between rockers. Forward facing parallel exhaust ports with FLANGE fitting to exhausts.18mm side plug. Rockers supported on cast support with clamps to rocker spindles. Forward mounted ML Maglita or round ML magneto. Square scalloped based cylinder barrel and plain drive side crankcase. Total loss oiling with Best & Lloyd pump mounted on timing cover.
Dummy belt rim front and rear.
4V ML lighting available. Headlamp mounted on tubular supports. Lighting control mounted on top frame rail. 6V lighting set provided for export models.
4 speed suspended gearbox with hand change on RHS of tank (open gate). Crossover to gearchange on LHS of gearbox. Gearbox with external kickstarter stop and double helical gears. Aluminium (painted black) primary chain cover and aluminium rear chainguard.
Stub fitting Senspray with Senspray 2 lever control
Twin 1 1/2” nickel plated short down pipes into horizontal aluminium expansion chamber mounted in front of the crankcase. Tail pipe to rear wheel.
Rear carrier. Non adjustable 7/8" handlebars type 110 with folded type inverted levers. Rear stand. Front stand. Leather tool bag strapped to rear carrier. ML battery carrier (where fitted) mounted on offside of rear carrier. Leather topped pillar mounted pan type saddle. Closed ended ‘D’ section forks. 17" tyre pump.