Kawasaki ZR-X 400 II (1998-00) vs Kawasaki ZRX 1200R (2003-04) vs Kawasaki W 650 (2005-07)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki |
| Model: | ZR-X 400 II | ZRX 1200R | W 650 |
| Years: | 1998-00 | 2003-04 | 2005-07 |
| Engine: | Four stroke parallel twin cylinder. DOHC, 2 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, parallel twin cylinder, SOHC, 4 valve per cylinder |
| Capacity: | 399 cc / 24.4 cu-in | 1165 cc / 71.0 cu-in | 676 cc / 41.2 cu-in |
| Bore x Stroke: | 57.5 х 38.5 mm | 79 x 59.4 mm. | 72 x 83 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 11.2:1 | 10.1:1 | 8.7:1 |
| Induction: | 4x Keihin CVK30 carburetors | 4x Keihin CVK36 carburetors | 2x Keihin CVK34 carburetor |
| Ignition: | Battery & coil | Digital with K-TRICK | Digital with K-TRIC |
| Starting: | Electric | Electric | Electric |
| Max Power: | 62 hp / 46.2 kW @ 11500 rpm | 122 hp / 88.9 kW @ 8500 rpm | 50 hp / 36.5 kW @ 5000 rpm |
| Max Torque: | 37 Nm / 27.3 lb-ft @ 9000 rpm | 112 Nm / 82.6 lb-ft @ 7000 rpm | 56 Nm / 5.71 kg-m @ 5500 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | 39mm RWU telescopic forks | 43 mm fully adjustable, conventional cartridge-type fork, offers 12-way compression and rebound damping adjustment as well as fork spring preload | 39 mm telescopic fork |
| Rear Suspension: | Dual shocks preload adjustment | Fully adjustable rear shock | Twin shocks with 5-way spring preload adjustment |
| Front Brakes: | 2x 298mm discs 6 piston calipers | 2x 310mm discs 6 piston calipers | Single 300mm disc 2 piston caliper |
| Rear Brakes: | Single 240mm disc 2 piston caliper | Single 250mm disc 2 piston caliper | 160mm Drum |
| Front Tyre: | 110/80-17 | 120/70 ZR17 | 100/90-19 |
| Rear Tyre: | 150/70-18 | 180/55 ZR17 | 130/80-18 |
| Wheelbase: | 1450 mm / 57.1 in | 1465 mm / 57.7 in | 1465 mm / 57.6 in |
| Seat Height: | 780 mm / 30.7 in | 790 mm / 31.1 in | 790 mm / 31.1 in |
| Dry Weight: | 186 kg / 410.1 lbs | 223 kg / 491.6 lbs | 195 kg / 430 lbs |
| Fuel Capacity: | 16 Litres / 4.2 US gal | 19 Litres / 5.0 US gal | 15 Litres / 3.96 US gal |