Upwards adjustable from 711 mm / 28 in. lowest setting
Front Suspension
Single spring girder fork
Rear Suspension
None, spring loaded saddle
Front Tyre
2.375 x 24
Rear Tyre
2.75 x 24
Front Brakes
None
Rear Brakes
Hand lever and foot pedal working independently on rear
wheel dummy rim, drum, internal expandable
The model description in the catalogue is very promising
indeed: “ It’s a machine that anyone can learn to ride in a few minutes, and
ride with confidence, because it is so light, comfortable and easy to
handle. The two stroke engine is easy to start and very economical to run.
This machine is fully capable of doing long distance journeys
at a good average speed and it is backed by the B.S.A. reputation for
consistent reliability.”
Introduced for the 1928 season, the A28 was BSA's first
production two-stroke.
In terms of its specification, the little BSA was a cut above
the (predominantly) Villiers-engined opposition, boasting unitary construction
of the engine/two-speed transmission, a dry clutch and primary drive by gears.
The engine/gearbox unit was carried in a bolted-up duplex frame and there were
two brakes, both of which operated on the rear wheel. Priced at £28 10s, the A28
comfortably undercut BSA's cheapest four-stroke model, the 249cc B28 De Luxe,
which cost a comparatively hefty £37 15s.
Any corrections or more information on these motorcycles will be kindly appreciated.