Norton International Model 30 (1955) vs Norton Commando 961/SS (2005-06) vs Norton 650SS (1968)
Comparison technical specifications
Add bike |
Remove bike |
Remove bike |
Remove bike |
| Make: | Norton | Norton | Norton |
| Model: | International Model 30 | Commando 961/SS | 650SS |
| Years: | 1955 | 2005-06 | 1968 |
| Engine: | Four stroke, single cylinder, SOHC | Four stroe, Parallel twin, push-rod valve, 2 valves per cylinder, OHV | Four stroke, parallel twin cylinder, push rod, 2 valves per cylinder. |
| Capacity: | 490.1 cc / 29.9 cu in | 961 cc / 58.6 cu-in | 647 cc / 39.5 cu in |
| Bore x Stroke: | 79 x 100 mm | 88 X 79 mm | 68 X 89 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 7.23:1 | 10.1:1 | 8.9:1 |
| Induction: | PAzin Amal TT carburetors | Carburettor. Twin 39mm Keihin FCR | 2 x Ø30 mm Amal concentric carburetors |
| Starting: | Kick | Electric | Kick |
| Max Power: | 22 kW / 29.5 hp @ 5500 rpm | 59.7 kW / 80 hp | 38.8 hW / 52 hp @ 6800 rpm |
| Transmission: | 4-Speed, close ratio | 5-Speed | 4 Speed |
| Final Drive: | Chain | Chain | Chain |
| Frame: | Cradle type | Chromium Molybdenum | Featherbed duplex steel cradle |
| Front Suspension: | Roadholder telescopic fork | Ø43 mm Telescopic fork, Öhlins | Telescopic forks |
| Rear Suspension: | Undamped plungers | Twin sided swingarm, twin shocks, pre-load adjustable | Dual shocks, 5-way adjustable |
| Front Brakes: | Drum | 2 x Ø320 mm discs, 4-piston calipers, Brembo | Ø203 mm Drum |
| Rear Brakes: | Drum | Single Ø220 mm disc, 2-piston caliper, Brembo | Ø178 mm Drum |
| Dry Weight: | 176 kg / 390 lbs | 188 kg / 415 lbs | 185 kg / 408 lbs |