Aprilia AF1 125 Project 108 Sport (1988) vs Kawasaki GPz 900 Ninja / ZX900R Ninja (1991-96)
Comparison technical specifications
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| Make: | Aprilia | Kawasaki |
| Model: | AF1 125 Project 108 Sport | GPz 900 Ninja / ZX900R Ninja |
| Years: | 1988 | 1991-96 |
| Engine: | Two stroke, single cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 123 cc / 7.5 cu in | 908 cc / 55.4 cu-in |
| Bore x Stroke: | 54 x 54.5 mm | 72.5 x 55 mm |
| Compression Ratio: | 15.5:1 | 11.0:1 |
| Cooling System: | Liquid cooled | Liquid cooled |
| Induction: | Dell'Orto carburetor, Ø 28 mm | 4x 34mm Keihin CVK34 carburettors |
| Starting: | Electric | Electric |
| Max Power: | 18.7 kW / 25.1 hp @10000 rpm | 108 hp / 80.5 kW @ 9500 rpm |
| Max Torque: | 17.7 Nm / 1.8 kgf-m / 13.1 lb-ft @ 8000 rpm | 8.7 kgf-m / 62.9 lb-ft @ 8500 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic fork, 4-way anti-drive adjustable | 41mm Telescopic forks, air assisted four way anti dive. |
| Rear Suspension: | Sebac mono shock | Uni-Trak air assisted, single shock, 4-way adjustable damping. |
| Front Brakes: | Single Ø 260 mm disc | 2x 300mm discs 4 piston calipers |
| Rear Brakes: | Single Ø 240mm disc | Single 250mm disc 2 piston caliper |
| Front Tyre: | 100/80-16 | 120/70-17 |
| Rear Tyre: | 120/80-16 | 150/70-18 |
| Dry Weight: | 120 kg / 265 lbs | 228 kg / 502 lbs |
| Fuel Capacity: | 22.5 L / 5.9 US gal | 22 Litres / 5.8 US gal |
| Consumption Average: | 4.4 L/100 km / 22.7 km/l / 53 US mpg | 40.8 mpg |
| Top Speed: | 156.6 km/h / 97.3 mph | 248.4 km/h / 155 mph |