| Attribute | Kawasaki KX450X × | Husqvarna SMR449 × |
|---|---|---|
| General | ||
| Production from (year) | 2021 | 2014 |
| Make | Kawasaki | Husqvarna |
| Model | Kawasaki KX450X | Husqvarna SMR449 |
| Category | Cross / motocross | Super motard |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | - | 4 |
| Fuel system | Injection. DFI® with 44mm Keihin throttle body | Injection. Keihin Digital Fuel Injection |
| Displacement (cm³) | 449 | 449.6 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 96 | 98 |
| Stroke (mm) | 62 | 59.6 |
| Gearbox | 5-speed | 6-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Driveline | - | Constant mesh |
| Ignition | Digital CDI with 3 Coupler Options | C.D.I. electronic, with adjustable advance |
| Clutch | Wet multi-disc, manual | Multi plate, hydraulic operation |
| Lubrication system | - | Dry sump with two oil pump rotor and cartridge filter |
| Compression | 12.5:1 | 12.0:1 |
| Chassis | ||
| Front suspension | 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping | 50mm Marzocchi USD |
| Rear suspension | Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping | Sachs Multi Adjustable Shock with Soft Damp Linkage |
| Front brakes | Single disc. Semi-floating petal discs | Single disc. Floating wave discs. Four pistons radial caliper. |
| Rear brakes | Single disc. Single-piston caliper. | Single disc. Floating wave disc. |
| Diameter (mm) | 250 | 240 |
| Frame type | Aluminum perimeter | - |
| Front tyre | 80/100-21 | 120/70-17 |
| Rear tyre | 120/80-18 | 150/60-17 |
| Front wheel travel (mm) | 305 | 250 |
| Rear wheel travel (mm) | 307 | 290 |
| Trail (mm) | 119 | - |
| Rake (fork angle) (degree) | 27.6 | - |
| Other | ||
| Starter | Electric | Electric |
| Color options |
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|
| Dimensions | ||
| Wheelbase (mm) | 1,485 | 1,460 |
| Dry weight (kg) | 107 | 118 |
| Overall height (mm) | 1,265 | 1,210 |
| Overall length (mm) | 2,185 | 2,170 |
| Overall width (mm) | 820 | 820 |
| Seat height (mm) | 950 | 915 |
| Ground clearance (mm) | 335 | 280 |
| Performance | ||
| Fuel capacity (l) | 6.2 | 8.5 |