KTM 690 Duke (2014) vs BMW C 400X (2020) vs KTM 125 Duke (2017)
Comparison technical specifications
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| Make: | KTM | BMW | KTM |
| Model: | 690 Duke | C 400X | 125 Duke |
| Years: | 2014 | 2020 | 2017 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valves | Four stroke, Single cylinder, SOHC, 4 Valves, with rocker arm. | Four stroke, Single cylinder, DOHC, 4 Valve |
| Capacity: | 690 cc / 42.1 cu in | 350 cc / 21.3 cub in. | 124.7 cc / 7.6 cu-in |
| Bore x Stroke: | 102 x 84.5 mm | 80 x 69.6 mm | 58 x 47.2 mm |
| Compression Ratio: | 12.6:1 | 11.5:1 | 14.5:1 |
| Induction: | Generation Keihin EMS with EPT (Electric Power Throttle) | Fuel injection, BMS-E2 40mm throttle valve diameter | Bosch Electronic fuel injection |
| Starting: | Electric | Electric, 500 kW | Electric |
| Max Power: | 52.2 kW / 70 hp @ 7500 rpm | 25.3 kW / 34 hp @ 7500 rpm | 11.3 kW / 15 hp @ 10500 rpm |
| Max Torque: | 69.8 Nm / 7.1 kgf-m / 51.6 ft-lb @ 6550 rpm | 34.3 Nm / 25.8 lb-ft @ 6000 rpm | 12 Nm / 1.22 kgf-m / 8.85 ft-lb @ 8000 rpm |
| Clutch: | APTC multi-disc wet clutch, hydraulically operated | Centrifugal clutch | Wet, multi-disc, operated hydraulically |
| Transmission: | 6 Speed | Continuously variable CVT belt transmission | 6 Speed |
| Final Drive: | Chain X-Ring 5/8 x 5/16" | Gear reduction cog wheel pairing | Chain 5/8 x 1/4" X ring |
| Frame: | Chromoly trellis frame, powder-coated, aluminium sub frame | Tubular spaceframe | Steel trellis frame, powder coated |
| Front Suspension: | WP Upside-down forks, 4357 ROMA | 35mm Telescopic forks. | 43 mm WP USD fork |
| Front Wheel Travel: | 135 mm / 5.3 in | 110 mm / 4.3 in | 142 mm / 5.6 in |
| Rear Suspension: | WP monoshock, 4618 with Pro-lever deflector | Aluminum double-sided swing arm, double spring strut, adjustable spring preload | WP monoshock |
| Rear Wheel Travel: | 135 mm / 5.3 in | 112 mm / 4.4 in | 150 mm / 5.9 in |
| Front Brakes: | Single 320 mm floating disc, radially screwed four-piston brake caliper | 2x 265mm Rigid discs 4 piston caliper. | Single 3000 mm disc, 4 piston radial fixed caliper |
| Rear Brakes: | Single 240 mm floating disc, single piston caliper | Single 265mm disc 1 piston caliper. | Single 230 mm disc, single piston floating caliper |
| Front Tyre: | 120/70 - ZR17 M/C 58W TL | 120/70 ZR15 | 110/70 -17 |
| Rear Tyre: | 160/60 - ZR17 M/C 69W TL | 150/70 ZR14 | 150/60 -17 |
| Seat Height: | 835 mm / 32.9 in | 775 mm / 30.5 in | 830 mm / 32.7 in |
| Fuel Capacity: | 14 Litres / 3.7 US gal / 3.1 Imp gal | 12.8 Litres / 3.4 US gal | 13.4 L / 3.5 US gal / 2.9 Imp gal |