_-_9401761725.jpg) 1965 B40 Star | |
| Manufacturer | BSA motorcycles |
|---|---|
| Parent company | Birmingham Small Arms Company |
| Production | 1961-1970 |
| Assembly | Small Heath, Birmingham |
| Engine | 343 cc air-cooled, unit construction single-cylinder OHV four-stroke |
| Bore / stroke | 79 mm × 70 mm (3.1 in × 2.8 in) |
| Compression ratio | 7:1 SS90: 8.75:1 |
| Power | 21 bhp (16 kW) @ 7,000 rpm SS90: 24 bhp (18 kW) @ 7,000 rpm |
| Transmission | Wet, multi-plate clutch, 4-speed gearbox, chain drive |
| Frame type | Single cradle |
| Suspension | Front: telescopic forks Rear: swinging arm |
| Brakes | Drum brakes front & rear |
| Wheelbase | 1,360 mm |
| Footnotes / references [1][2][3][4] | |
The BSA B40 was a series of 350 cc (21 cu in) unit construction single-cylinder OHV four-stroke motorcycles made by the Birmingham Small Arms Company. Developed from the BSA C15, the machines were produced between 1961 and 1967 for civilian use. Military versions were manufactured from 1967 to 1970.[5] Around 14,000 machines were built in total.[6]
- ^ Wright 1992, p. 141.
- ^ Henshaw 2015, p. 55.
- ^ Fraser 1967, p. 518.
- ^ "Technical Information". www.bsawdb40.com. Retrieved 12 October 2019.
- ^ "BSAOC Year Listing". www.bsaownersclub.co.uk. Owners Club. Archived from the original on 7 October 2019. Retrieved 5 October 2019.
- ^ Henshaw2015, p. 12.