Kawasaki Z 400 (2021) vs Aprilia Tuono 1000 R Factory (2006) vs Kawasaki KLX 300R (2007-10)
Comparison technical specifications
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| Make: | Kawasaki | Aprilia | Kawasaki |
| Model: | Z 400 | Tuono 1000 R Factory | KLX 300R |
| Years: | 2021 | 2006 | 2007-10 |
| Engine: | Four stroke, parallel twin, DOHC, 4 valves per cylinder | Four stroke, longitudinal 60°V twin, DOHC, 4 valves per cylinder | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 399 cc / cu-in | 997.6 cc / 60.9 cu in | 292 cc / 17.9 cu-in |
| Bore x Stroke: | 70 x 51.8 mm | 97 x 67.5mm | 78 x 61.2 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled, 50% distilled water & 50% ethylene glycol base antifreeze |
| Compression Ratio: | 11.5:1 | 11.8:1 | 11.0:1 |
| Induction: | DFI with 32mm throttle bodies | Integrated electronic engine management system. Indirect multipoint electronic injection, Ø57 mm throttle bodies. | Keihin CVK34, constant velocity, diaphragm |
| Ignition: | TCBI with digital advance | Digital electronic with one spark plugs per cylinder. Ignition timing integrated in the injection control system. | Digital CDI |
| Starting: | Electric | Electric | Kick |
| Max Power: | 33.4 kW / 45 hp @10000 rpm | 102 kW / 139 hp @ 9500 rpm | 33 hp / 24.1 kW @ 8500 rpm |
| Max Torque: | 38 Nm / 28.0 lb-ft @ 8,000 rpm | 107 Nm / 10.9 kgf-m / 78.8 ft-lb @ 8500 rpm | 28.4 Nm @ 7500 rpm |
| Clutch: | Wet multi-disc, manual | Multiple disk in oil bath with patented PPC power-assisted hydraulic control | Wet, multi-disc, manual |
| Transmission: | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain, 520, O-ring, 14-tooth front, 50-tooth rear |
| Frame: | Trellis, high-tensile steel | Box section sloping twin-spar frame in aluminium alloy. Removable aluminium alloy saddle mount frame. | High tensile steel perimeter |
| Front Suspension: | 41mm Telescopic fork | Öhlins Racing Ø43 mm upside-down fork with adjustment for spring preload, compression and rebound damping | 43mm inverted cartridge fork, 20-way compression damping |
| Front Wheel Travel: | 120 mm / 4.7 in | 120 mm / 4.7 in | 285 mm / 11.2 in |
| Rear Suspension: | Bottom-Link Uni-Trak, gas-charged shock with adjustable preload | Aluminium alloy double member swingarm. APS (Aprilia Progressive System) rising rate linkages. Öhlins Racing piggy-back monoshock with adjustment for spring preload, compression and rebound damping. | Single shock, 20-way compression damping and 18-way rebound damping |
| Rear Wheel Travel: | 130 mm / 5.1 in | 130 mm / 5.1 in | 280 mm / 11.0 in |
| Front Brakes: | Single 310mm semi-floating petal discs. Caliper: Single balanced actuation dual piston | 2 x Ø320mm floating discs, stainless steel, 4 piston calipers, Brembo Gold | Single 250mm disc 2 piston caliper |
| Rear Brakes: | Single 220 mm petal disc. Caliper: Dual-piston | Single Ø220 mm stainless steel disc, 2 piston caliper, Brembo Gold | Single 220mm disc 1 piston caliper |
| Front Tyre: | 110/70-17M/C 54 H | 120/70 ZR17 | 80/100-21 |
| Rear Tyre: | 150/60-17M/C 66 H | 190/50 ZR17 | 100/100-18 |
| Rake: | 24.5° | 25° | 26.5° |
| Trail: | 92 mm / 3.7 in | 103.7 mm / 4.1 in | 106 mm / 4.2 in |
| Wheelbase: | 1370 mm / 53.9 in | 1410 mm / 55.5 in | 1435 mm / 56.5 in |
| Seat Height: | 785 mm / 30.9 in | 840 mm / 33.1 in | 924.5 mm / 36.4 in |
| Ground Clearance: | 145 mm / 5.7 in | 99 mm / 3.9 in | 320 mm / 12.6 in |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 18 L / 4.8 US gal | 10 Litres / 2.6 US gal |