BMW C 650 GT (2012-13) vs Kawasaki Z 650 (1978) vs Kawasaki ER-6f (2014) vs BMW R 1200RT LC (2015) vs Kawasaki ER-6f (2009)
Comparison technical specifications
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| Make: | BMW | Kawasaki | Kawasaki | BMW | Kawasaki |
| Model: | C 650 GT | Z 650 | ER-6f | R 1200RT LC | ER-6f |
| Years: | 2012-13 | 1978 | 2014 | 2015 | 2009 |
| Engine: | Four stroke, twin-cylinder, DOHC, 4 Valves per cylinder | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder | Four stroke, parallel twin, DOHC, 4 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, DOHC, 4 valves per cylinder | Four stroke, parallel twin, DOHC, 4 valves per cylinder. |
| Capacity: | 647 cc / 38.5 cub in. | 652 cc / 39.7 in | 649 cc / 39.6 cu-in | 1170, 71.4 co in | 649 cc / 39.6 cu-in |
| Bore x Stroke: | 79 x 66 mm | 62 х 54 mm | 83 X 60mm | 101 x 73 mm | 83 X 60mm |
| Compression Ratio: | 11.6:1 | 9.5:1 | 11.3;1 | 12.5:1 | 11.3;1 |
| Induction: | Fuel injection BMS-E, 38mm Throttle valve | 4x 28mm Mikuni carburetors | 2x 38mm Electronic Fuel Injection Keihin | Throttle valve mm 52 Carburetion BMS-X Emission control Closed-loop 3-way catalytic converter | 2x 38mm Electronic Fuel Injection Keihin |
| Starting: | Electric | Electric & kick | Electric | Electric | Electric |
| Clutch: | Centrifugal clutch | Wet, multi-plate | Wet, multiple discs, cable operated | Single disc dry clutch, hydraulically actuated | Wet, multiple discs, cable operated |
| Max Power: | 44 kW / 60 hp @ 7500 rpm | 66 hp / 48.2 kW @ 8500 rpm | 53 kW / 72.1 hp @ 8500 rpm | 92 kW / 125 hp @ 7750 rpm | 53 kW / 72.1 hp @ 8500 rpm |
| Max Torque: | 66 Nm / 6.7 kgf-m / 48.7 lb-ft. @ 6000 rpm | 5.8 kgf-m / 57 Nm @ 7000 rpm | 66 Nm / 6.7 m-kg @ 7000 rpm | 125 Nm / 12.7 kgf-m / 92 lb-ft @ 6500 rpm | 66 Nm / 6.7 m-kg @ 7000 rpm |
| Transmission: | CVT (continuously variable transmission) | 5 Speed | 6 Speed | 6 Speed | 6 Speed |
| Frame: | Steel tube construction with aluminium die cast unit | Steel twin loop cradle | Perimeter, high-tensile steel | Tubular steel frame, engine load-bearing | Diamond, high-tensile steel |
| Front Suspension: | System Upside down fork Ø 40 mm / 1.6 in. | Telescopic hydraulic fork | 41 mm telescopic fork | BMW Telelever | 41 mm telescopic fork, |
| Rear Suspension: | System Cast single swingarm. | Swinging fork | Offset laydown single-shock with adjustable preload | BMW EVO Paralever | Offset laydown single-shock with adjustable preload, |
| Front Brakes: | 2x 270mm discs 2 piston caliper, ABS | Single 275mm disc 1 piston caliper | 2x 300mm discs 2 piston Calipers | 2 x 320mm Discs, 4 piston callipers | 2x 300mm discs 2 piston calipers |
| Rear Brakes: | Single 270mm disc 2 piston caliper, ABS | 180mm Drum | Single 220mm disc 1 piston Caliper | Single 276mm disc, 2 piston caliper | Single 220mm disc 1 piston caliper |
| Front Tyre: | 120/70 R15 | 3.25-19 | 120/70ZR17 | 120/70 ZR17 | 120/70ZR17 |
| Rear Tyre: | 160/60 R15 | 4.00-18 | 160/60ZR17 | 180/60 ZR17 | 160/60ZR17 |
| Seat Height: | 805 mm / 31.7 in. | 800 mm / 31.5 in | 805 mm / 31.7 in | 805 mm / 31.5 in - 825 mm / 32.5 in (SA: 830mm / 850mm or 760mm / 780mm) | 790 mm / 31.1 in |
| Wet Weight: | 261 kg / 575 lbs. | 220 kg / 485 lbs | 209 kg / 460 lbs | 274 kg / 604 lbs | 200 kg / 440 lbs |
| Fuel Capacity: | 16 Litres / 4.2 US gal. | 16.5 Litres / 4.3 US gal | 16 Litres / 4.2 US gal | 25 Litres / 6.6 US gal | 15.5 Litres / 4.1 US gal |