Kawasaki KDX 175 (1980-82) vs Kawasaki ZX-4 F3 (1988) vs Suzuki RG 125E (1980-84)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Suzuki |
| Model: | KDX 175 | ZX-4 F3 | RG 125E |
| Years: | 1980-82 | 1988 | 1980-84 |
| Engine: | Two stroke, single cylinder, read valve | Four stroke, transverse four cylinder, DOHC, 4 Valve per cylinder. | Single cylinder, two-stroke, piston valve |
| Capacity: | 173 cc / 10.5 cu-in | 399 cc / 24.3 cu-in | 124 cc / 7.6 cu in |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Bore x Stroke: | 66.0 x 50.6 mm | 57 х 39 mm | 43 х 43 mm |
| Compression Ratio: | 7.6:1 | 11.5:1 | 6.8:1 |
| Starting: | Kick | Electric | Kick |
| Max Power: | 20.1 hp / 14.9 kW @ 9000 rpm | 59 hp / 44 kW @ 12000 rpm | 11.9 kW / 16 hp @ 9500 rpm |
| Max Torque: | 2.2 kgf-m / 15.9 lb-ft @ 8000 rpm | 3.6 kgf-m / 26.0 lb-ft @ 10500 rpm | 12.7 Nm / 1.3 kgf-m / 9.4 lb-ft @ 8500 rpm |
| Transmission: | 6 Speed | 6 Speed | 5 Speed constant mesh |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | Telescopic forks | 41mm Telescopic forks | Telescopic, oil dampened |
| Rear Suspension: | Single shock adjustable for compression rebound and spring preload, | Rising rate monoshock | Swingarm, dual shocks, coils, oil dampened |
| Front Brakes: | Drum | 2x 300mm discs 4 piston calipers | Single disc, hydraulic |
| Rear Brakes: | Drum | Single 240mm disc 1 piston caliper | Drum, internal expanding |
| Front Tyre: | 3.00-21 | 110/70-17 | 2.75-18 |
| Rear Tyre: | 4.00-18 | 140/60-18 | 3.00-18 |