KTM 690 Duke (2008) vs Suzuki GSX 400F Impulse (1999-03)
Comparison technical specifications
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| Make: | KTM | Suzuki |
| Model: | 690 Duke | GSX 400F Impulse |
| Years: | 2008 | 1999-03 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valves | Four stroke, in-line 4 cylinders, DOHC, 4 valves per cylinder |
| Capacity: | 653.7 cc / 39.91 cu in | 399 cc / 24.3 cu in |
| Bore x Stroke: | 102 x 80 mm | 52 x 47 mm |
| Cooling System: | Liquid Cooled | Liquid cooled |
| Compression Ratio: | 11.8:1 | 11.8:1 |
| Induction: | Generation Keihin EMS with EPT (Electric Power Throttle) | 4 x 29 mm Carburetors |
| Starting: | Electric | Electric |
| Max Power: | 46 kW / 65 hp @ 7500 rpm | 44 kW / 59 hp @ 12000 rpm |
| Max Torque: | 65 Nm / 6.6 kgf-m / 47.9 ft-lb @ 6550 rpm | 37 Nm / 3.8 kgf-m / 27.3 lb-ft @ 10500 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain X-Ring 5/8 x 5/16" | Chain |
| Front Suspension: | WP Upside-down forks, 4860 ROMA | Telescopic forks |
| Rear Suspension: | WP monoshock, 4618 with Pro-lever deflector | Dual shocks, preload adjustable. |
| Front Brakes: | Single 320 mm floating disc, radially screwed four-piston brake caliper | 2 x 290 mm Discs, 2 piston calipers |
| Rear Brakes: | Single 240 mm floating disc, single piston caliper | Single disc, 1 piston caliper |
| Front Tyre: | 120/70 - R17 | 110/80-17 |
| Rear Tyre: | 160/60 - R17 | 130/80-17 |
| Seat Height: | 865 mm / 34 in | 760 mm / 29.9 in |
| Dry Weight: | 148.5 kg / 327 in | 153 kg / 337 lbs |
| Fuel Capacity: | 13.5 Litres / 3.6 US gal / 3.0 Imp gal | 18 Litres / 4.8 US gal / 4.0 Imp gal |