ENGINE - 81.8x95 mm. (497 c.c.) O.H.V. Two-port (VH 2) or Single-port (VH I) optional. Specially bench-tested and capable of being tuned to speeds exceeding 100 m.p.h. Totally enclosed valve springs. Valve guides automatically lubricated. Ground and highly polished ports. 14 mm. sparking plug. Extremely rigid crankcase designed for maximum speeds and efficiency. Polished high tensile steel flywheels. Large diameter mainshafts mounted on two heavy duty roller bearings and one ball bearing. Extra large double roller bearing big-end with duralumin cage. Light and rigid nickel-chrome steel con-rod polished all over. Special light pressure piston rings. A medium compression piston is fitted as standard, A high compression piston, giving a ratio of 7.5 to I (suitable for 50/50 Petrol/Benzole only) can be fitted to special order, without extra charge.
LUBRICATION - Dry sump system, employing dual plunger pumps and ¾-gallon capacity separate oil tank.
CARBURETTER - Large bore, down-draught Amal. Retroflex supply pipe.
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. Silencers : As illustrated. Can be supplied with detachable
fishtails to special order.
Pipes : Upswept with leg guard or low level to special order.
Single-port : Silencer : As model VG.
Pipe : Upswept with leg guard or low level to special order.
WHEELS - Dunlop tyres, 26x3.25, studded rear; 26x3 ribbed front. Chromium brake plates. Chromium rims. Red centres.
MUDGUARDS - Robust ribbed section steel guards, 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 Red, lined Gold.
