Honda CBX 650E (1982-85) vs Honda MVX 250F (1983) vs KTM RC 390 (2017) vs Ducati 750GT (1974)
Comparison technical specifications
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| Make: | Honda | Honda | KTM | Ducati |
| Model: | CBX 650E | MVX 250F | RC 390 | 750GT |
| Years: | 1982-85 | 1983 | 2017 | 1974 |
| Engine: | Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder. | Two stroke, 90°V-three cylinder, reed valve | Four stroke, single cylinder. DOHC with finger followers, 4 Valve per cylinder | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven |
| Capacity: | 656 cc / 40. cu-in | 249 | 373 cc / 22.7 cu-in | 748 cc / 45.6 cu-in |
| Bore x Stroke: | 60 x 58 mm | 47 x 48 mm | 89 x 60 mm | 80 x 74.4 mm |
| Cooling System: | Air cooled | Liquid cooled | Liquid Cooled | Air cooled |
| Compression Ratio: | 9.5:1 | 8.0:1 | 12.6:1 | 8.5:1 |
| Induction: | 4x 26mm Keihin carburetors | TA01 | Bosch Injection | 2 x 30mm Amal R 930/76 |
| Max Power: | 75 hp / 54.7 kW @ 9500 rpm | 49 hp @ 9000 rpm | 32 kW / 43 hp @ 9500 rpm | 41.9 kW / 57 hp @ 7700 rpm |
| Transmission: | 6 Speed | 6 speed | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Chain | Chain 5/8 x 1/4” X‑Ring | Chain |
| Front Suspension: | Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive | Telescopiv forks | WP Suspension Up Side Down | 38 mm Marzocchi fork From 1974: Ceriani fork |
| Rear Suspension: | Dual shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping | Mono shock | WP Monoshock | Dual shocks, Marzocchi 305 mm, 3-way adjustable |
| Front Brakes: | 2x 276 mm discs | 2x discs | Single 320 mm disc 4 piston radial caliper | Single 280mm disc |
| Rear Brakes: | Drum | Drum | Single 230 mm disc 1 piston caliper | 200 mm Drum |
| Front Tyre: | 100/90-19 | 100/90 -16 | 110/70 R17 | 3.25-19 |
| Rear Tyre: | 130/90-16 | 110/80 -18 | 150/60 R17 | 3.50-18 |
| Dry Weight: | 197.0 kg / 434.3 lbs | 138 kg | 139 kg / 306.4 lbs | 185 kg / 408 lbs |
| Fuel Capacity: | 12.9 Liters / 3.4 US gal | 19 Litres | 10 Liters / 2.64 lbs | 17 Litres / 4.5 US gal |