ENGINE - 81.8x95 mm. (497 c.c.)- High efficiency engine. Totally enclosed valve springs. Valve guides automatically lubricated. Ball bearings on both sides of mainshaft. Double roller bearing big-end. High tensile steel connecting rod. Aluminium alloy piston, 6 to 1 compression.
LUBRICATION - Dry sump system, employing dual plunger pumps and ¾-gallon capacity separate oil tank.
CARBURETTER - Down-draught Amal.
GEARBOX - Four-speed. Foot control.
TRANSMISSION - Engine shaft shock absorber. Polished aluminium oil bath chain case and Ariel outside clutch of large dimensions. Rear chain fully protected and automatically lubricated.
EXHAUST SYSTEM - Two-port, with streamlined silencers.
WHEELS - Dunlop tyres, 26x 3.25.
MUDGUARDS - Robust ribbed section steel guards, fully valanced, as illustrated. Tail of rear guard hinged to facilitate wheel removal.
TANK - All-steel saddle type, with instrument panel. 3¼-gallon capacity. Superbly finished Chromium and Black, lined Gold. (Chromium and Ariel Green optional).
