BSA A28, A29 and A30

From CycleChaos
Jump to navigation Jump to search
Bsa-a28-02.jpg
BSA A28, A29 and A30
Manufacturer
BSA
Production 1928 - 30
Engine
Two stroke, single cylinder 3-Port
Ignition Magneto
Battery 6V
Transmission 2-Speed
Frame duplex
Suspension Front: Single spring girder fork
Rear: None, spring loaded saddle
Brakes Front: None
Rear: Hand lever and foot pedal working independently on rear wheel dummy rim, drum, internal expandable
Front Tire 2.375 x 24
Rear Tire 2.75 x 24
Seat Height Upwards adjustable from 711 mm / 28 in. lowest setting
Weight
Manuals Service Manual



Drive[edit]

Power was moderated via the Dry clutch.

Chassis[edit]

It came with a 2.375 x 24 front tire and a 2.75 x 24 rear tire. Stopping was achieved via None in the front and a Hand lever and foot pedal working independently on rear wheel dummy rim, drum, internal expandable in the rear. The front suspension was a Single spring girder fork while the rear was equipped with a None, spring loaded saddle.

Photos[edit]

BSA A28, A29 and A30 BSA A28, A29 and A30 BSA A28, A29 and A30 BSA A28, A29 and A30

Overview[edit]

BSA A28, A29, A30





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.



Make Model BSA A28 - A30-2
Year 1928 - 30
Engine Type Two stroke, single cylinder 3-Port
Displacement 174 cc / 10.6 cub in.
Bore X Stroke 60 x 61.5 mm
Exhaust Single, stainless steel
Ignition Magneto
Battery 6V
Starting Slip on kick starter
Max Power 1.25 kW / 1.7 hp
Transmission 2-Speed
Final Drive Chain
Clutch Dry clutch
Frame duplex
Seat Height Upwards adjustable from 711 mm / 28 in. lowest setting
Front Suspension Single spring girder fork
Rear Suspension None, spring loaded saddle
Front Tire 2.375 x 24
Rear Tire 2.75 x 24
Front Brakes None
Rear Brakes Hand lever and foot pedal working independently on rear wheel dummy rim, drum, internal expandable
Colour Green tank/black frame