The BSA C12 was a British pre-unit motorcycle manufactured by the Birmingham Small Arms Company from 1956 to 1958. [1] The C12 used the same engine as the earlier C11G with the four-speed gearbox, but in a more modern chassis featuring a swinging arm rear suspension. [2] .

2023年11月20日 · The 1958 MY BSA C12 sports an air-cooled, four-stroke, 249cc, single cylinder engine paired to a four-speed manual transmission that can produce a claimed 12 horsepower at 4000 rpm.

Make Model: BSA C12: Year: 1957: Engine: Four stroke, single cylinder, OHV: Capacity: 249 cc / 15.2 cub in. Cooling System: Air cooled: Carburetor: Amal: Exhaust ...

1956 BSA C12 specs, performance data, engine specifications, pictures.

bsa 1956 c12 250 c.c. O.H.V. model C12 For extra comfort this sturdy machine has a frame incorporating swinging-arm rear suspension, a four-speed gearbox to take full advantage of its engine power, and the finish is smart-looking maroon with cream panel (chromium to order) on the petrol tank, or black in place of maroon, if preferred.

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bsa c12 Basically the same engine as the C11G but housed in modern chassis. Reasonable suspension, usable brakes and comfortable seat means it’s more useful than earlier models, whilst minor engine mod’s meant it’s also more reliable.

The BSA C11 was a pre-unit single-cylinder developed before the Second World War from the sidevalve C10. Fitted with overhead valves and displacing 249cc, the C11 was launched in 1939 and continued to be developed into the 1950s. [2] The C11 frame was improved in 1951 when BSA added plunger rear suspension.

2009年11月24日 · Who said BSA is going to be an easy restoration! I have found a guy who will cut gear plates, temper them and install the right size bushes on the gears so that the wear on shafts can be accounted for.

2024年12月19日 · C10, C10L, C11, C12 & C12G models. FOR THE BSA MOTORCYCLE LISTED BELOW. Note: This is the older style service sheet manual used before BSA began publishing the more modern service manuals.