The BSA Super Rocket was a four-stroke, parallel twin cylinder motorcycle produced from 1959 to 1963. It had a capacity of 646cc and a maximum power of 37 kW/50 hp at 6250 rpm. The engine was equipped with an Amal TT racing carburetor, a Lucas magneto ignition, and a dry sump lubrication system. The bike had a kick start and a 4-speed transmission with a multi-plate clutch and chain final drive. The frame was made of welded seamless steel tubing with a duplex downtube and full cradle engine support, with a bolted-on rear subframe. The BSA Super Rocket had telescopic forks with a coil spring-hydraulically damped front suspension and a swinging arm rear suspension. The braking system consisted of an 8-inch drum brake in the front and a 7-inch drum brake in the rear. The wheels were made of steel with wire spokes and the tires were 3.25 x 19 inches in the front and 4.00 x 19 inches in the rear. The bike weighed 170 kg (375 lbs) and had a fuel capacity of 16 L (4.2 US gal). It had an average fuel consumption of 4.7 L/100 km (21.3 km/l or 50 US mpg) and a top speed of 187 km/h (116 mph). The standing quarter mile was achieved in 14.1 seconds.
Technical specifications:
Make Model: BSA Super Rocket
| Year | 1959 – 63 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, OHV |
| Capacity | 646cc / 39.4 cub in. |
| Bore x Stroke | 70 x 84 mm |
| Carburetor | Amal TT racing |
| Cooling System | Air cooled |
| Compression Ratio | 8.3:1 |
| Lubrication | Dry sump |
| Exhaust | Twin, stainless steel |
| Ignition | Lucas magneto |
| Battery | 6V |
| Starting | Kick start |
| Max Power | 37 kW / 50 hp @ 6250 rpm |
| Clutch | Multi-plate with built-in cush drive |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Gear Ratio | 1st 11.68 / 2nd 7.96 / 3rd 5.48 / 4th 4.53:1 |
| Frame | Welded seamless steel tubing with duplex downtubes and full cradle engine support, bolted-on rear sub frame |
| Front Suspension | Telescopic forks with coil spring – hydraulically damped |
| Rear Suspension | Swinging arm |
| Front Brakes | Drum, 8 in. |
| Rear Brakes | Drum, 7 in. |
| Braking Distance (both wheels from 32 km/h / 20 mph | 4 m / 13 ft |
| Wheels | Steel, wire spokes |
| Front Tyre | 3.25 x 19 in., ribbed |
| Rear Tyre | 4.00 x 19 in. |
| Dimensions | Length: 2100 mm / 84.0 in. |
| Wheelbase | 1391 mm / 54.75 in. |
| Wet Weight | 170 kg / 375 lbs |
| Fuel Capacity | 16 L / 4.2 US gal |
| Average Fuel Consumption | 4.7 L/100 km / 21.3 km/l / 50 US mpg |
| Top Speed | 187 km/h / 116 mph |
| Standing Quarter Mile (400 m) | 14.1 sec. |
