The Norton Atlas motorcycle, manufactured in 1968, is equipped with a four-stroke parallel twin-cylinder engine. The engine has a capacity of 647 cc and generates 52 horsepower at 6800 rpm. The bike has a kick start system and a four-speed transmission, with a final drive via chain. The frame is a featherbed duplex steel cradle, with telescopic forks for the front suspension and dual shocks for the rear suspension, which is five-way adjustable. The front and rear brakes are drum-type, with the front brake measuring 203 mm and the rear brake measuring 178 mm. The Norton Atlas has a top speed of 185 km/h or 115 mph and can carry up to 13.5 L or 3.6 US gallons of fuel. The front and rear tires are sized 3.25-19 and 4.00-18 respectively, while the bike weighs in at 185 kg or 408 lbs when dry.
Technical specifications:
Make Model: Norton 650SS
| Year | 1968 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, push rod, 2 valves per cylinder. |
| Capacity | 647 cc / 39.5 cu in |
| Bore x Stroke | 68 X 89 mm |
| Compression Ratio | 8.9:1 |
| Cooling System | Air cooled |
| Induction | 2 x ~A30 mm Amal concentric carburetors |
| Starting | Kick |
| Max Power | 38.8 hW / 52 hp @ 6800 rpm |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Frame | Featherbed duplex steel cradle |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shocks, 5-way adjustable |
| Front Brakes | ~A203 mm Drum |
| Rear Brakes | ~A178 mm Drum |
| Front Tyre | 3.25-19 |
| Rear Tyre | 4.00-18 |
| Dry-Weight | 185 kg / 408 lbs |
| Fuel Capacity | 13.5 L / 3.6 US gal |
| Top Speed | 185 km/h / 115 mph |
