Yamaha XT 550 (1983) vs Kawasaki ER-6f (2014)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki |
| Model: | XT 550 | ER-6f |
| Years: | 1983 | 2014 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, parallel twin, DOHC, 4 valves per cylinder. |
| Capacity: | 558 cc / 34.0 cu-in | 649 cc / 39.6 cu-in |
| Bore x Stroke: | 92 X 84 mm | 83 X 60mm |
| Cooling System: | Air cooled | Liquid cooled, |
| Compression Ratio: | 8.5:1 | 11.3;1 |
| Induction: | 26mm TK carburetor | 2x 38mm Electronic Fuel Injection Keihin |
| Ignition: | CDI | Digital TCBI |
| Starting: | Kick | Electric |
| Max Power: | 38 hp / 27.7 kW @ 6500 rpm | 53 kW / 72.1 hp @ 8500 rpm |
| Max Torque: | .4.5 kg-m / 44.0 Nm @ 5500 rpm | 66 Nm / 6.7 m-kg @ 7000 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Front Suspension: | 38mm Air assisted forks | 41 mm telescopic fork |
| Front Wheel Travel: | 201 mm / 7.9 in | 120 mm / 4.7 in |
| Rear Suspension: | Monoshock adjustable preload | Offset laydown single-shock with adjustable preload |
| Rear Wheel Travel: | 186 mm / 7.3 in | 130 mm / 5.1 in |
| Front Brakes: | Drum | 2x 300mm discs 2 piston Calipers |
| Rear Brakes: | Drum | Single 220mm disc 1 piston Caliper |
| Front Tyre: | 3.00S-21-4PR | 120/70ZR17 |
| Rear Tyre: | 4.60S-18-4PR | 160/60ZR17 |
| Wheelbase: | 1400 mm / 55.1 in | 1410 mm / 55.5 in |
| Seat Height: | 860 mm / 33.8 in | 805 mm / 31.7 in |
| Ground Clearance: | 250 mm / 9.8 in | 130 mm / 5.1 in |
| Wet Weight: | 145 kg / 319.6 lbs | 209 kg / 460 lbs |
| Fuel Capacity: | 14 Litres / 3.6 US gal | 16 Litres / 4.2 US gal |