Engine. Twin Cylinder 7.70 h.p., 76 x 85 m/m bore and stroke. Large silencer on chainstay.
Lubrication. Mechanical pump, sight feed on tank. Hand pump. Oil supplied to front chain by by-pass valve on timing case.
Transmission. Front chain ½in.× .305in., completely enclosed. Rear chain 5/8in.× 3/8in. efficiently protected. Cam-faced cush drive fitted to engine shaft.
Handlebar. Semi-sporting or touring if specified. Both adjustable and mounted behind steering head.
Tank. Saddle type, with knee grips. Capacity : Petrol 2 gallons. Oil 3¼ pints.
Tyres. Dunlop cord, 26in.× 3.25in., W.O. 27in.× 4in. W.O. Balloon tyres, with special front mudguard extra.
Brakes. 7in. diameter, taper roller bearings to both hubs. Rear brake toe operated, and provided with quick adjustment.
Saddle. Spring seat.
Footboards. Pressed steel, black enamelled, with rubber mats.