Aprilia RS 457 GP Replica (2026) vs Kawasaki Z 900RS (2022)
Comparison technical specifications
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| Make: | Aprilia | Kawasaki |
| Model: | RS 457 GP Replica | Z 900RS |
| Years: | 2026 | 2022 |
| Engine: | Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder |
| Capacity: | 457 cc / 27.9 cu in | 948 cc / 57.8 cu-in |
| Bore x Stroke: | 69 x 61.1 mm | 73.4 x 56.0 mm |
| Compression Ratio: | n/a | 11.8:1 |
| Cooling System: | Liquid cooled with radiator and water-oil heat exchanger | Liquid cooled |
| Lubrication: | Wet sump | Forced lubrication wet sum |
| Induction: | Fuel Injection | DFI with 36mm Keihin throttle bodies |
| Ignition: | Dgital | TCBI with electronic advance |
| Starting: | Electric | Electric |
| Max Power: | 35 kW / 47.6 hp @ 9400 rpm | 110 hp / 82 kW @ 8500rpm |
| Max Torque: | 43.5 Nm / 32.1 lb-ft @ 6700 rpm | 98 Nm / 72.7 lb-ft @ 7700 rpm |
| Clutch: | Wet, multi-plate, slipper | Wet multi-disc, manual |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Sealed chain |
| Frame: | Twin spar aluminum frame | High-tensile steel trellis. |
| Front Suspension: | ? 41mm USD fork, adjustable preload | 41mm inverted fork with compression and rebound damping and spring preload adjustability |
| Front Wheel Travel: | 120 mm / 4.7 in | 120 mm / 4.7 in |
| Rear Suspension: | Monoshock, adjustable preload | Horizontal Back-link, gas-charged shock with rebound and preload adjustability |
| Rear Wheel Travel: | 130 mm / 5.1 in | 140 mm / 5.5 in |
| Front Brakes: | Single ? 320 mm floating disc. ByBre 4-piston radial caliper | 2x 300 mm semi-floating discs, dual opposed 4 piston calipers |
| Rear Brakes: | Single ? 220 mm disc. ByBre caliper | Single 250mm petal disc, 1 piston caliper |
| Front Tyre: | 110/70-17 | 120/70ZR17M/C (58W) |
| Rear Tyre: | 150/60-17 | 180/55ZR17M/C (73W) |
| Dimensions: | Length: 1960 mm / 77.2 in Width: 795 mm / 31.3 in Height: 1137 mm / 44.8 in | Length 2100 mm / 82.6 in Width 845 mm / 33.2 in Height 1190 mm / 46.9 in |
| Seat Height: | 795 mm / 31.3 in | 820 mm / 32.2 in |
| Wet Weight: | 176 kg / 388 lbs | 215 kg / 474 lbs |
| Fuel Capacity: | 12.7 Litres / 3.4 US gal | 17 Litres / 4.5 US gal |