Honda CBX 650SC Night hawk (1982-85) vs Honda CB 450SC Nighthawk (1982-) vs Honda FT 400 Ascot (1982-83) vs Honda CR 500R (1989) vs Moto Guzzi 850 Le Mans Mark II (1978-80)
Comparison technical specifications
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| Make: | Honda | Honda | Honda | Honda | Moto Guzzi |
| Model: | CBX 650SC Night hawk | CB 450SC Nighthawk | FT 400 Ascot | CR 500R | 850 Le Mans Mark II |
| Years: | 1982-85 | 1982- | 1982-83 | 1989 | 1978-80 |
| Engine: | Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder. | Four stroke, parallel twin cylinder, SOHC, 3 valves per cylinder, | Four stroke, single cylinder, SOHC, 4 valve | Two stroke, single cylinder, membrane & power valve | Four stroke, 90° V twin, longitudinally mounted, OHV pushrod, 2 valves per cylinder |
| Capacity: | 656 cc / 40. cu-in | 447 cc / 27.2 cu-in | 398 cc / 24.3 cu-in | 491.4 cc / 29.9 cu-in | 844 cc / 51.5 cu-in |
| Bore x Stroke: | 60 x 58 mm | 75 X 50.6mm | 89.0 x 79.0 mm | 83 x 78 mm | |
| Cooling System: | Air cooled | Air cooled | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 9.5:1 | 9.1:1 | 6.8:1 | 10.2:1 | |
| Induction: | 4x 26mm Keihin | 2x 34mm constant velocity | 35mm Keihin carburetor | Single 38mm Keihin flat-slide carburettor | 2x 36mm Dell'Orto carburetors |
| Max Power: | 75 hp / 54.7 kW @ 9500 rpm | 43.3 hp / 32.2 kW @ 8500 rpm | 64.6 hp / 47.5 kW @ 6000 rpm | 73 hp / 53.7 kW @ 7700 rpm | |
| Max Torque: | 4.3 Kgm / 42.1 Nm @ 650 rpm | 72.2 Nm / 53.3 lb-ft @ 6000 rpm | 76.4 Nm / 56.4 lb-ft @ 6600 rpm | ||
| Final Drive: | Shaft | Chain | Chain | Chain | Shaft |
| Front Suspension: | Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive | Telescopic forks 124.5mm wheel travel | 37mm Air assisted forks, 152mm wheel. travel | 45mm Showa leading axle USD forks with adjustable compression rebound damping | Oil damped telescopic fork |
| Rear Suspension: | Dual shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping | Swing arm 97mm wheel travel | Dual gas shocks, spring preload adjustable. 84mm wheel travel. | Showa Prolink with adjustable compression rebound damping | Swing arm with 3-pos preload |
| Front Brakes: | 2x 276 mm discs | Single 272mm disc | Single 296mm disc 1 piston caliper | 240mm Single disc hydraulic 2 piston caliper | 2x 310mm discs |
| Rear Brakes: | Drum | 140mm Drum | Single 276mm disc 1 piston caliper | 220mm Single disc hydraulic 1 piston caliper | Single 242mm disc |
| Front Tyre: | 100/90-19 | 100/90 -19 | 3.50-19 | 80/100 - 21 | 3.50 H18 |
| Rear Tyre: | 130/90-16 | 130/90 -16 | 4.25-18 | 110/100 - 18 | 4.10 V18 |
| Dry Weight: | 197.0 kg / 434.3 lbs | 178 kg / 392 lbs | 171 kg | 105.6 kg / 233.0 lbs | 196 kg / 433 lbs |
| Fuel Capacity: | 12.9 Liters / 3.4 US gal | 14 Litres / 3.7 US gal | 13 Litres / 3.4 US gal | 9 Litres / 2.4 US gal | 22.5 Litres / 4.8 gal |