Comparison of ATK 450 MX 2007 and Kawasaki KX 450 F [S]ave
| Attribute |  ATK 450 MX 2007 × |  Kawasaki KX 450 F × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2006 |
| Make | ATK | Kawasaki |
| Model | ATK 450 MX | Kawasaki KX 450 F |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | - | 4 |
| Fuel system | Injection. EFI Fuel Injection | Carburettor. Keihin FCR40 |
| Displacement (cm³) | 446 | 449 |
| Power (kw) | 33.6 | - |
| Cooling system | - | Liquid |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 96.5 | 96 |
| Stroke (mm) | 61 | 62.1 |
| Gearbox | 5-speed | 4-speed |
| Fuel control | - | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | - | Multi-Map Digital CDI with |
| Clutch | Hydraulic | - |
| Compression | 12.3:1 | 12.0:1 |
| Chassis | ||
| Front suspension | 46mm Ohlins | 38mm leading axle, air-adjustable preload / 9.1 in. |
| Rear suspension | Ohlins POS | Uni-Trak® with Adjustable Preload, 22-Way (Low Speed)/ Stepless (High Speed) Compression Adjustment, 22-Way Rebound Damping Adjustment |
| Front brakes | Single disc. Dual piston, 240mm Rotor | Single disc |
| Rear brakes | Single disc. Dual piston, 220mm Rotor | Single disc |
| Diameter (mm) | 220 | 240 |
| Frame type | Aluminum Twin-Spar | - |
| Front tyre | 80/100-21 | 90/90-21 |
| Rear tyre | 110/100-19 | 120/80-19 |
| Rake (fork angle) (degree) | - | 27.1 |
| Other | ||
| Starter | Electric | - |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,486 | 1,486 |
| Dry weight (kg) | 109 | 99 |
| Power/weight ratio | 0.306 | - |
| Seat height (mm) | 965 | 965 |
| Ground clearance (mm) | 361 | 345 |
| Performance | ||
| Fuel capacity (l) | 7.57 | 7.19 |
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