BSA C11250
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| BSA C11250 | |
| Manufacturer | |
|---|---|
| Production | 1939 - 56 |
| Engine | Four stroke, single cylinder, OHV |
| Ignition | Coil Magdyno for Military models |
| Transmission | 4-Speed |
| Frame | Brazed lug construction |
| Suspension | Front: Telescopic with compression damping Rear: None, spring loaded saddle From 1951: Plunger rear suspension |
| Weight | |
| Manuals | Service Manual |
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, single cylinder, OHV.
Chassis[edit | edit source]
The front suspension was a Telescopic with compression damping while the rear was equipped with a None, spring loaded saddle From 1951: Plunger rear suspension.
Photos[edit | edit source]
Overview[edit | edit source]
BSA C11
"C11 Steve McQueen" 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. The C11 frame was improved in 1951 when BSA added plunger rear suspension.
Military W-C11 Although British armed forces only used a few BSA C11s as lightweight transport (having selected instead the BSA M20) in 1940, 530 C11s were ordered in military specification by the Office of the High Commission of India. Modifications for war use included a rear carrier over the mudguard, an additional air filter on the fuel tank and a mag dyno in place of the coil.
BSA C11G Problems with the gearboxes were addressed by the model C11G, which was available either with a three speed gearbox and a rigid frame or with a four speed gearbox in the plunger frame. The C11G also had improved front brakes and became popular as a post war commuter motorcycle.
Steve McQueen's C11 Actor Steve McQueen owned a 1951 BSA C11. Painted in British racing green, McQueen's C11 had a chrome tank with green and gold accents and chrome wheels with green spokes. After McQueen's death the C11 was kept by his wife Barbara for many years before being sold by auction. Wikipedia,
| Make Model | BSA C11 |
|---|---|
| Year | 1939 - 56 |
| Engine Type | Four stroke, single cylinder, OHV |
| Displacement | 249 cc / 15.2 cub in. |
| Cooling System | Air cooled |
| Exhaust | Single, steel |
| Ignition | Coil Magdyno for Military models |
| Starting | Kick start |
| Max Power | 9 kW / 12 hp |
| Transmission | 4-Speed |
| Final Drive | Chain |
| Frame | Brazed lug construction |
| Front Suspension | Telescopic with compression damping |
| Rear Suspension | None, spring loaded saddle From 1951: Plunger rear suspension |
| Front Brake | 7 in., drum |
| Rear Brake | 7 in., drum |