Husqvarna Vitpilen 401 (2022) vs KTM 640 Duke II (2003-04)
Comparison technical specifications
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| Make: | Husqvarna | KTM |
| Model: | Vitpilen 401 | 640 Duke II |
| Years: | 2022 | 2003-04 |
| Engine: | Four stroke, single cylinder, DOHC with cam levers, 4 valves | Four stroke, single Cylinder. SOHC, 4 valves, engine balancer |
| Capacity: | 373.2 cc / 22.8 cu-in | 624.6 cc / 38.1 cu in |
| Bore x Stroke: | 89 x 60 mm | 101 x 78 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 12.6:1 | 11.5:1 |
| Lubrication: | Wet sump with 2 oil pumps | 2 x Eaten oil pumps |
| Induction: | Bosch EFI (throttle body 46 mm) | Mikuni BST 40 carburetor |
| Starting: | Electric | Electric & kick |
| Max Power: | 44 hp / 32 kW @ 9000 rpm | 40.1 kW / 55 hp @ 7000 rpm |
| Max Torque: | 37 Nm / 27.3 lb-ft @ 7000 rpm | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm |
| Clutch: | Multi disc slipper clutch | Multi-disc in oil bath |
| Transmission: | 6 Speed | 5 Speed |
| Primary Drive Ratio: | 30:80 | 30:81, straight cut gears |
| Final Drive Ratio: | 15:45 | 17:38 |
| Final Drive: | Chain, X-Ring 5/8 x 1/4″ | Chain, O-ring 5/8 x 1/4" |
| Frame: | Steel trellis frame, powder coated | Central chrome-moly steel frame |
| Front Suspension: | 43mm WP APEX upside-down forks, with compression rebound adjustability | WP - 4054 Roma Top adjuster, preload, compression and rebound adjustable |
| Front Wheel Travel: | 142 mm / 5.6 in | 140 mm / 5.5 in |
| Rear Suspension: | WP APEX monoshock with preload adjustability | Central shock absorber WP IBS with PRO-LEVER linkage to rear- swing-arm with needle bearing |
| Rear Wheel Travel: | 142 mm / 5.6 in | 170 mm / 6.7 in |
| Front Brakes: | Single 320mm disc, ByBre 4 piston caliper | Single 320 mm disc, 4 piston caliper |
| Rear Brakes: | Single 230mm disc, ByBre, single piston, floating caliper | Single 220 mm disc, 1 piston caliper |
| Front Tyre: | 110/70-R17 Metzeler M5 | 120/70 - ZR17 58H |
| Rear Tyre: | 150/60-R17 Metzeler M5 | 160/60 - ZR17 69H |
| Steering Head Angle: | 65 ° | 62.5o |
| Wheelbase: | 1357 ± 15.5 mm / 53.4 in | 1460 mm / 57.5 in |
| Seat Height: | 835 mm / 32.8 in | 860 mm / 33.9 in |
| Ground Clearance: | 145 mm / 5.6 in | 250 mm / 9.9 in |
| Fuel Capacity: | 9.5 Litres / 2.5 US gal | 11.3 Litres / 3.0 US gal / 2.4 Imp gal |