BSA Motorcycles C12 1956-1958
| Manufacturer | BSA |
|---|---|
| Production | 1956-1958 |
| Predecessor | BSA C11G |
| Successor | BSA C15 |
| Engine | 249cc OHV single-cylinder engine |
| Power | 12 bhp |
| Transmission | Duplex primary chain |
The BSA C12 was a British pre-unit motorcycle manufactured by the Birmingham Small Arms Company from 1956 to 1958.
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. Minor engine modifications meant it was also far more reliable[citation needed].