Kawasaki GPX 750R (1990) vs Ducati 250 Mach 1 (1964-66) vs Suzuki DR-Z4SM (2025)
Comparison technical specifications
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| Make: | Kawasaki | Ducati | Suzuki |
| Model: | GPX 750R | 250 Mach 1 | DR-Z4SM |
| Years: | 1990 | 1964-66 | 2025 |
| Engine: | Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder | Four stroke, single cylinder, Desmo SOHC, bevel gear-drive | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 742 cc / 45.6 cu-in | 248.6 cc / 15.2 cu in | 398 cc / 24.3 cu-in |
| Bore x Stroke: | 68 x 51.5 mm | 74 x 57.8 mm | 90 x 62.6 mm. |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 11.2:1 | 10:1 | 11.1:1 |
| Induction: | 4x 34mm Keihin CV carburetors | Dell'Orto SS1 29A carburetor | Ride-by-wire, 42mm bore, electronic throttle body and a 10-hole fuel injector |
| Ignition: | TCI (Transistor Controlled Ignition) | Battery and coil, 6V 60W generator | Digital CDI |
| Starting: | Elctric | Kick | Electric |
| Max Power: | 106 hp / 74.5 kW @ 10500 rpm | 20.6 kW / 28 hp @ 8500 rpm | 28 kW / 38 hp @ 8000 rpm |
| Clutch: | Wet, multiple discs, cable operated | Wet, multi-plate | Wet, multiple discs, cable operated |
| Transmission: | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain, #520 |
| Front Suspension: | 38mm Telehydraulic forks electrically activated anti-dive | Hydraulic telescopic fork, Ducati 31.5 mm | Telescopic, 49 mm, oil-damped, 11-way compression damping, adjustable spring preload |
| Rear Suspension: | Unit-track air assisted 4-way rebound damping adjustment. | Swingarm, dual shocks, Marzocchi 295 mm, three-way adjustable | Link-type, fully adjustable spring preload, 26-way compression damping |
| Front Brakes: | 2x 270mm discs 4 piston calipers | Drum, 180 mm | Single disc |
| Rear Brakes: | Single 230mm disc 2 piston caliper | Drum, 160 mm | Single disc |
| Front Tyre: | 110/90-16 | 2.50-18 CEAT | 120/70R-17M/C 58h |
| Rear Tyre: | 140/70-18 | 2.75-18 CEAT | 140/70R-17M/C 66H |
| Wheelbase: | 1495 mm / 58.6 in | 1350 mm / 53.1 in | 1465 mm / 57.7 in |
| Fuel Capacity: | 21 Litres / 5.5 US gal | 13 L / 3.4 US gal / 2.9 Imp gal | 8.7 Litres / 2.3 US gal |