BSA Motorcycles 1920s

Today in Motorcycle History

BSA 1929 S29 Deluxe

Inclined SV Engine

Engine. 4.93 h.p., 80 x 98 m/m bore and stroke. Double row roller bi end bearing pressure oil fed. Enclosed valves. Inclined cylinder giving efficiently cooled head. Gear-driven magneto at rear of cylinder.

Silencer. Large capacity with fish tail.

Carburetter. Amac. Flange type fixing.

Lubrication. Oil sump integral with crank case. Capacity 3 pints. Submerged gear pump, visible tell-tale. Surplus oil in crank case returned to sump by scraper acting on flywheels. Oil level gauge.

Transmission. Front chain, ½in.× .305in.. enclosed in two-part case. Rear chain, 5/8in.× 3/8in., efficiently protected. Cam-faced cush drive fitted to engine shaft.

Gear Box. Special pivot mounting. A wide ratio gear box can be fitted for sidecar work if specified.

Frame. Duplex cradle frame. Head fitted with B.S.A. steering damper. Detachable carrier. Spring up rear stand.

Handlebar. Reversible type mounted behind steering head, with long rubber grips.

Tank. Saddle type for fuel only. Capacity : gallons. Adjustable rubber knee grips fitted.

Tyres. Dunlop Cord, 26in.× 3.25in., W.O. 27in.× 4in. Balloon tyres, with special front mudguard extra.

Brakes. 7in. diameter, taper roller bearings to both hubs. Rear brake Quickly adjustable.

Saddle. Spring seat.

Price £52. 15s.

With Lucas No. 320 Acetylene Lamps and No. 63 Bulb Horn £54. 7.s 6d.
With Lucas "Magdyno" Set and Lucas No. 60 K.P. Bulb Horn £58. 10s