BSA Motorcycles


BSA 1961 B40
BSA 1961 B40 legshields
Reinforced glass fibre leg-shields available at £5. 5s. 0d.

£205 including £35. Is. Id. purchase tax.

Here is the eagerly awaited model B40, the new B.S.A. 350 cc OHV single. Brilliant in performance, a sheer delight to ride under all conditions, economical in maintenance and running costs, this handsome model is destined to acquire an unsurpassed reputation in its class.

Engine. 343 cc (79 x 70 mm.); single cylinder four-stroke; die cast light alloy head, fully enclosed valve gear with pressure oil feed to overhead rocker mechanism; ball race on drive side mainshaft; copper-lead bearings on timing side mainshaft and connecting rod big-end; dry sump lubrication with double gear type oil pump; oil tank capacity four pints.

Carburettor. Amal Monobloc type with twist grip throttle control and enclosed air cleaner.

Transmission. B.S.A. four-speed gearbox in unit construction with engine; positive stop foot control; gear ratios   5.22—6.78—9.4—14.25;   multi-plate clutch with bonded resilient facings and incorporating a synthetic rubber cush drive; cable adjustment by knurled thumbscrew on handlebar; 3/8" duplex primary chain; rear chain 1/2" x .335" rollers; primary chain oil-bath and guard over top run of rear chain.

Ignition and Lighting. Coil ignition incorporating A.C. generator with rectifier for D.C. battery lighting; automatic advance and retard unit mounted on crankcase; special switch position for emergency starting; folding kick starter; Lucas electrical equipment; 6" diameter nacelle mounted headlamp with ammeter, lighting switch, and built-in illuminated speedometer; stop and tail lamp incorporating rear reflector; electric horn; 12 amp. hr. battery housed in a special compartment.

Fuel Capacity. 3 gallons.

Tyres. Dunlop 3.25 x 18" ribbed front and 3.50 x 18" Universal rear.

If you have a query about BSA motorcycles, or wish to share information about these vintage British machines, please contact us
Ducati Gowanloch
Ducati Gowanloch
Parts and Service for Bevel and Belt Drive Ducati. Huge stocks. Worldwide delivery.