BSA Road Rocket
The BSA Road Rocket was a 1950s 646 cc (39.4 cu in) air-cooled parallel twin motorcycle designed by Bert Hopwood and produced by Birmingham Small Arms Company (BSA) at Small Heath, Birmingham. Developed from the A10 Golden Flash it was the first sports bike in the BSA A10 series. The A10 had a reputation for reliability but was struggling to compete against the Triumph engines and the Norton Featherbed frames. Advertised by BSA in 1956 as 'undoubtedly the world's greatest motor cycle' the Road Rocket was discontinued in 1958 when it was replaced by the BSA Super Rocket.
| Manufacturer | BSA |
|---|---|
| Production | 1954-1958 |
| Assembly | Small Heath, Birmingham, UK |
| Successor | BSA Super Rocket |
| Engine | 646 cc air cooled twin |
| Bore / stroke | 70 mm × 84 mm (2.8 in × 3.3 in) |
| Power | 40 bhp (30 kW) @ 6,000rpm |
| Ignition type | Magneto |
| Transmission | Four speed, chain drive |
| Suspension | Telescopic fork (front), swinging arm (rear) |
| Brakes | Drum |
| Wheelbase | 54.75 in (1,391 mm) |
| Dimensions | L: 84 in (2,100 mm) |
| Weight | 418 pounds (190 kg) (dry) |
| Fuel capacity | 3.5 imp gal (16 L) |
| Fuel consumption | 50 mpg‑imp (5.6 L/100 km) |
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