Kawasaki Z 650 Custom / KZ650C (1979) vs Kawasaki KLX 250R (2004-06) vs Kawasaki ZZ-R 1100 D (1998) vs BMW K 1200S (2007-08) vs Kawasaki Zephyr 400 X (1998-00)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki | BMW | Kawasaki |
| Model: | Z 650 Custom / KZ650C | KLX 250R | ZZ-R 1100 D | K 1200S | Zephyr 400 X |
| Years: | 1979 | 2004-06 | 1998 | 2007-08 | 1998-00 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder. | Four stroke, single cylinder, DOHC, 4 valve | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke parallel twin cylinder. DOHC, 4 valves per cylinder |
| Capacity: | 652 cc / 39.7 in | 249 cc / 15.2 cu-in | 1052 cc / 64.1 cu-in | 1157 cc / 70.6 cu in | 399 cc / 24.4 cu-in |
| Bore x Stroke: | 62 х 54 mm | 72 х 61.2 mm | 11.0:1 | 79 X 59 mm | 55 х 42 mm |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled, | Liquid cooled | Air cooled |
| Compression Ratio: | 9.5:1 | 11.0:1 | 76 x 58 mm | 13.0:1 | 10.3:1 |
| Induction: | 4x 28mm Mikuni carburetors | Keihin CVK34 carburetor | 4x Keihin CVKD40 carbs | Injection | 4X Keihin CVK30 carburetors |
| Ignition: | Battery & coil | Digital CDI | Battery and coil (transistorized) | Electronic | Full transistor |
| Starting: | Electric & kick | Kick | Electric | Electric | Electric |
| Max Power: | 66 hp / 48.2 kW @ 8500 rpm | 27 hp / 22.3 kW @ 8500 rpm | 147 hp / 108 kW @ 10500 rpm | 124.5 kW / 167 hp @ 10250 rpm | 49 hp / 36.8 kW @ 11000 rpm |
| Max Torque: | 5.8 kgf-m / 57 Nm @ 7000 rpm | 2.6 kgf-m / 18.5 lb-ft @ 7500 rpm | 110 Nm / 11.2 kgf-m @ 8500 rpm | 129 Nm / 13.2 kgf-m / 95.4 lb-ft @ 8250 rpm | 3.1 kgf m / 22.4 lb-ft @ 10500 rpm |
| Transmission: | 5 Speed | 6 Speed | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Shaft | Chain |
| Front Suspension: | Telescopic forks | 43 USD cartridge fork with 16-way adjustable compression damping | 43mm forks preload and rebound adjustable. | BMW Motorrad Duolever; central spring strut | Telescopic forks |
| Rear Suspension: | Swinging arm | Bottom-Link UNI-TRAK with gas-charged shock, adjustable preload, 16-way rebound and compression damping | Monoshock fully adjustable. | BMW Paralever with progressive damping single shock absorber, remotely adjustable for preload and rebound | Dual shocks |
| Front Brakes: | 2X 231mm discs | Single 250mm disc 2 piston caliper | 2x 320mm discs 4 piston calipers | 2 x ∅320mm discs, 4 piston calipers | 2x discs |
| Rear Brakes: | Single 220mm disc | Single 230mm disc 1 piston caliper | Single 240mm disc 1 piston caliper | Single ∅265mm disc, 2 piston caliper | Single disc |
| Front Tyre: | 3.25-19 | 3.00 -21 | 120/70 VR17 | 120/70-17 | 110/80-17 |
| Rear Tyre: | 4.00-18 | 4.00 -17 | 180/55 VR17 | 190/50-17 | 140/70-18 |
| Seat Height: | 800mm / 31.5 in | 880 mm / 35 in | 780 mm 30.7 in | 820 mm / 32.3 in. | 770 mm / 30.1 in |
| Fuel Capacity: | 16.5 Litres / 4.3 US gal | 10 Litres / 2.6 US gal | 24 Litres / 6.3 us gal | 19 L / 5.0 US gal | 14 Litres / 3.6 US gal |