Norton Commando 750 Interstate (1972) vs KTM RC8R 1190 (2010) vs Norton Commando 961 SF (2015) vs Jawa 420 Prototype (1982) vs Triumph Thunderbird 1600 (2009)
Comparison technical specifications
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| Make: | Norton | KTM | Norton | Jawa | Triumph |
| Model: | Commando 750 Interstate | RC8R 1190 | Commando 961 SF | 420 Prototype | Thunderbird 1600 |
| Years: | 1972 | 2010 | 2015 | 1982 | 2009 |
| Engine: | Four stroke, parallel twin cylinder, push rod, OHV, 2 valves per cylinder. | Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder | Four stroke, parallel twin with push-rod valve actuation, 3 bearing crank balancer shaft, 2 valves per cylinder | Four stroke, single cylinder, SOHC, 4 valves per cylinder. | Four stroke, parallel twin, DOHC, 4 valves per cylinder. |
| Capacity: | 745 cc / 45.5 cu in | 1195 cc / 73.0 cu-in | 961 cc / 58.6 cu in | 420 cc / 25.6 cu in | 1597 cc / 97.5 cu in |
| Bore x Stroke: | 73 x 89 mm | 105 x 69 mm | 88 x 79 mm | 85 x 73 mm | 103.8 x 94.3mm |
| Cooling System: | Air cooled | Liquid cooling | Air cooled | Liquid cooled | Liquid cooled |
| Transmission: | 4 Speed | 6 Speed | 5 Speed, constant mesh | 5 Speed | 6 Speed |
| Final Drive: | Chain | 17:37 | Chain, 525 "O" ring | Chain | Toothed belt |
| Front Suspension: | Telescopic forks | 43mm WP Upside down adjustable | Ø43 mm Öhlins USD, adjustable preload, compression, and rebound damping. | Hydraulic telescopic forks | Showa 47 mm forks. |
| Rear Suspension: | Dual shocks, 5-way adjustable | WP shock, fully adjustable | Öhlins reservoir-style twin shocks, adjustable ride height, preload, compression, and rebound damping. | Single shock | Showa chromed spring twin shocks with 5 position adjustable preload. |
| Front Brakes: | Single disc | 2x 320mm discs 4 piston calipers | Brembo 2 x Ø320 mm fully-floating high carbon stainless steel discs, 4 piston "Gold Line" Brembo radially mounted calipers. Brembo "Gold Line" front brake master cylinder with integral reservoir | Single disc | 2 x 310 mm Discs, 4 piston calipers |
| Rear Brakes: | Single178 mm Drum, twin leading shoe | Single 240mm disc | Brembo single Ø220 mm disc, 2 piston "Gold Line" caliper. Brembo rear brake master cylinder | Expanding drum | Single 310 mm disc, 2 piston caliper |
| Dry Weight: | 203 kg / 448 lbs | 182 kg / 405.23 lb (no fuel) | 188 kg / 415 lbs | 155 kg / 342 bls | 308 kg / 678 lbs |
| Fuel Capacity: | 25 Litres / 6.6 US gal | 16.5 Litres / 3.5 gal | 17 Litres / 4.5 US gal | 20 L / 5.2 US gal | 22 Litres / 5.8 US gal / 4.8 Imp gal |