Yamaha XT 550 (1983) vs Kawasaki ER-6f (2014) vs KTM 250 EXC-E (2012-) vs Kawasaki Xanthus 400 (1992)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | KTM | Kawasaki |
| Model: | XT 550 | ER-6f | 250 EXC-E | Xanthus 400 |
| Years: | 1983 | 2014 | 2012- | 1992 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, parallel twin, DOHC, 4 valves per cylinder. | Two stroke, single cylinder | Four stroke parallel twin cylinder. DOHC, 2 valves per cylinder |
| Capacity: | 558 cc / 34.0 cu-in | 649 cc / 39.6 cu-in | 249 cc / 15.2 cu in | 399 cc / 24.4 cu-in |
| Bore x Stroke: | 92 X 84 mm | 83 X 60mm | 66.4 x 72.0 mm | 55 х 42 mm |
| Cooling System: | Air cooled | Liquid cooled, | Liquid cooled | Air cooled |
| Compression Ratio: | 8.5:1 | 11.3;1 | 12.8:1 | 9.7:1 |
| Induction: | 26mm TK carburetor | 2x 38mm Electronic Fuel Injection Keihin | Keihin MX FCR 39 carburetor | 4X Keihin CVK30 carburetors |
| Ignition: | CDI | Digital TCBI | Contactless DC-CDI ignition with digital advanced system by KOKUSAN | Full transistor |
| Starting: | Kick | Electric | Kick and electric | Electric |
| Transmission: | 5 Speed | 6 Speed | 6 Speed | 6 Speed |
| Front Suspension: | 38mm Air assisted forks | 41 mm telescopic fork | WP Suspension – 4860 MXMA / MXMA + PA | Telescopic forks |
| Rear Suspension: | Monoshock adjustable preload | Offset laydown single-shock with adjustable preload | WP Suspension – 5018 PDS MCC / DCC, aluminium swing arm | Dual shocks |
| Front Brakes: | Drum | 2x 300mm discs 2 piston Calipers | Single 260 mm disc, floating caliper | 2x discs |
| Rear Brakes: | Drum | Single 220mm disc 1 piston Caliper | Single 220 mm disc, floating caliper | Single disc |
| Front Tyre: | 3.00S-21-4PR | 120/70ZR17 | 90/90 - 21 | 110/80-17 |
| Rear Tyre: | 4.60S-18-4PR | 160/60ZR17 | 120/80 - 18 | 140/70-18 |
| Wheelbase: | 1400 mm / 55.1 in | 1410 mm / 55.5 in | 1475 mm / 58.1 in | 1435 mm / 56.5 in |
| Seat Height: | 860 mm / 33.8 in | 805 mm / 31.7 in | 925 mm / 36.4 in | 770 mm / 30.1 in |
| Ground Clearance: | 250 mm / 9.8 in | 130 mm / 5.1 in | 380 mm / 15.1 in | 120 mm / 4.1 in |
| Fuel Capacity: | 14 Litres / 3.6 US gal | 16 Litres / 4.2 US gal | 9.5 Litres / 2.5 US gal | 14 Litres / 3.6 US gal |