| General |
| Year | 2005 - 06 | 2025 |
| Make Model | Yamaha WR 450F | Husqvarna Norden 901 Expedition |
| Dimensions |
| Seat Height | 998 mm / 39.3 in | 887 - 907 mm / 34.94 - 35.7 in |
| Wheelbase | 1485 mm / 58.5 in | 1,529 mm ± 15 mm / 60.1 in ± 0.6 in |
| Ground Clearance | 365 mm / 14.3 in | 270 mm / 10.6 in |
| Height | 1300 mm / 51.2 in | - |
| Length | 2175 mm / 85.6 in | - |
| Width | 825 mm / 32.5 in | - |
| Weights & Capacities |
| Wet Weight (kg) | 122 | 214.5 |
| Dry Weight (kg) | 112.5 | 211.5 |
| Dry Weight | 112.5 kg / 248 lbs | 211.5 kg / 466.2 |
| Fuel Capacity | 8 Liters / 2.1 US gal | 22 Litres / 5.8 US gal |
| Wet Weight | 122 kg / 268 lbs | 214.5 kg / 472.8 lb |
| Performance |
| Max Power | 58 hp / 42.3 kW @ 9000 rpm | 78.3 kW / 105 hp @ 8000 rpm |
| Max Torque | 49 Nm / 33.1 lb-ft @ 7000 rpm | 100 Nm / 73.7 lb-ft @ 6500 rpm |
| Engine |
| Displacement | 449 cc / 27.4 in | 889 cc / 54.3 cu-in |
| Engine Detail | Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder. | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Bore x Stroke | 95 x 63.4 mm | 90.7 x 68.8 mm |
| Compression Ratio | 12.5:1 | 13.5:1 |
| Cooling System | Liquid cooled | Liquid cooled with water/oil heat exchanger |
| Emissions | - | Euro 5 |
| Engine Management | - | Bosch EMS with RBW |
| Exhaust | - | Stainless steel primary and secondary silencer |
| Fuel Induction | 39mm Keihin FCR flat-slide throttle position sensor | DKK Dell'Orto with 46mm throttle body |
| Ignition | Digital CDI | - |
| Lubrication | Wet Sump | Pressure lubrication with 2 oil pumps |
| Starter | Electric / Kick-starter | Electric |
| Drivetrain |
| Clutch | Wet, multiple discs, cable operated | Cable operated PASC Slipper clutch |
| Final Drive | "O" ring Chain | Chain 520 X-Ring |
| Final Drive Ratio | - | 16:45 |
| Primary Drive Ratios | - | 39:75 |
| Transmission / Drive | 5 Speed | 6 Speed |
| Chassis |
| Frame Type | Steel, Single cradle frame | Chromium-Molybdenum-Steel frame using the engine as stressed element, powder coated |
| Suspension - Front | 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable | 48mm WP XPLOR-USD, compression, rebound, preload |
| Suspension - Rear | Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment | WP XPLOR-Monoshock, Compression high/low speed, rebound, preload |
| Clamp Offset - Triple | - | 30 mm / 1.1 in |
| Handlebar | - | Aluminium, tapered, Ø 28/22 mm |
| Rake | - | 25.8° |
| Steering Head Angle | - | 64.2° |
| Subframe | - | Chromium-Molybdenum-Steel trellis, powder coated |
| Trail | - | 106.9 mm / 4.2 in |
| Wheel Travel - Front | 300 mm / 11.8 in | 240 mm / 9.4 in |
| Wheel Travel - Rear | 318 mm / 12.4 in | 240 mm / 9.4 in |
| Electronics |
| Traction control | - | MTC (lean angle sensitive, 3-Mode, disengageable, Explorer mode optional) |
| Wheels & Brakes |
| Brakes - Front | Single 250mm disc 4 piston caliper | 2x 320mm discs, 4-piston radially mounted calipers |
| Brakes - Rear | Single 245mm disc 2-piston caliper | Single 260mm disc, 2 piston floating caliper |
| ABS | - | Bosch 9.1 ME (incl. Cornering-ABS and Offroad mode, disengageable) |
| Tyres - Front | 80/100-21 | 90/90 R 21 Pirelli Scorpion Rally STR |
| Tyres - Rear | 110/100-18 | 150/70 R 18 Pirelli Scorpion Rally STR |
| Wheels | - | Tubeless Aluminium spoked wheels |
| Wheels - Front | - | 2.50 x 21 |
| Wheels - Rear | - | 4.50 x 18 |