BSA B de Luxe

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BSA B de Luxe

Make Model	BSA B 250 De Luxe
Year	1927
Engine	Four stroke , single cylinder, side valve
Capacity	249 cc / 15.2 cub in
Bore and Stroke	63 x 80 mm
Exhaust	Single, stainless steel
Ignition	Magneto
Battery	6V
Starting	Slip on kick starter
Max Power	1.83 kW / 2.49 hp
Transmission	2-Speed
Final Drive	Chain
Seat height	Upwards adjustable from 711 mm / 28 in. lowest setting
Front Suspension	Single spring girder fork
Rear Suspension	None, spring loaded saddle
Front Tyre	2.25 x 24
Rear Tyre	2.25 x 24
Front Brakes	None
Rear Brakes	Hand lever and foot pedal woking independently on rear wheel dummy rim

A top-selling model for BSA in the 1920s, the versatile Model B, or ‘Round Tank’, was used by just about every tradesman whose job required cheap personal transport. Popular with learners - the fact that the gearbox had only two speeds and that both brakes operated on the rear wheel were attributes guaranteed to re-assure novices - the reliable 250 sidevalve provided many with their first motorcycling experience.

Advanced features, for a lightweight, included all-chain drive and pumped lubrication, though the traditional sight feed and auxiliary hand pump were retained. In 1926 a three-speed version - identifiable by its black tank - was added to the range. Reverting to BSA’s traditional green finish the following year, the Model B was available in three-speed form only, although there were now two versions: ‘standard’ and ‘de Luxe’, the latter boasting a wedge-shaped tank.

Marginally heavier and slightly more expensive, the de Luxe was the only Model B offered in 1928.