| Attribute | Yamaha WR 426 F 2002 × | Husqvarna SMR449 × |
|---|---|---|
| General | ||
| Production from (year) | 2002 | 2014 |
| Make | Yamaha | Husqvarna |
| Model | Yamaha WR 426 F | Husqvarna SMR449 |
| Category | Cross / motocross | Super motard |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 5 | 4 |
| Fuel system | - | Injection. Keihin Digital Fuel Injection |
| Displacement (cm³) | 426 | 449.6 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 95 | 98 |
| Stroke (mm) | 60.1 | 59.6 |
| Gearbox | - | 6-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Driveline | - | Constant mesh |
| Ignition | - | C.D.I. electronic, with adjustable advance |
| Clutch | - | 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 | - | 50mm Marzocchi USD |
| Rear suspension | - | Sachs Multi Adjustable Shock with Soft Damp Linkage |
| Front brakes | Single disc | Single disc. Floating wave discs. Four pistons radial caliper. |
| Rear brakes | Single disc | Single disc. Floating wave disc. |
| Diameter (mm) | 240 | 240 |
| Front tyre | 90/90-21 | 120/70-17 |
| Rear tyre | 130/90-18 | 150/60-17 |
| Front wheel travel (mm) | 300 | 250 |
| Rear wheel travel (mm) | 315 | 290 |
| Other | ||
| Starter | - | Electric |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,490 | 1,460 |
| Dry weight (kg) | 112 | 118 |
| Overall height (mm) | 1,303 | 1,210 |
| Overall length (mm) | 2,270 | 2,170 |
| Overall width (mm) | 835 | 820 |
| Seat height (mm) | 998 | 915 |
| Ground clearance (mm) | 375 | 280 |
| Performance | ||
| Fuel capacity (l) | - | 8.5 |