Aprilia MXV 4.5 - 2009 Specifications and Reviews
The 2009 Aprilia MXV 4.5 is a 449cc V2 four-stroke motocross bike engineered for serious off-road competitors seeking high performance and reliability. Its liquid-cooled engine with selectable fuel mapping and advanced fuel injection delivers responsive power across varied terrain. Best known for combining Italian engineering with practical motocross capability, it appeals to experienced riders demanding technical superiority.
General information | |
| Category | Cross / motocross |
| Year | 2009 |
| Model | Aprilia MXV 4.5 |
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Engine and Transmission Specifications | |
| Clutch | Multi-plate in oil bath, cable operated. |
| Transmission typefinal drive | Chain |
| Gearbox | 4-speed |
| Cooling system | Liquid |
| Lubrication system | Dry sump. Separate gearbox lubrication. |
| Starter | Kick |
| Ignition | Electronic digital (batteryless). |
| Fuel system | Injection. Integrated engine management system controlling ignition and fuel injection. Throttle body: 38 mm. Hard and soft mappings selectable from the handlebars. |
| Bore x stroke | 76.0 x 49.5 mm (3.0 x 1.9 inches) |
| Compression | 13.0:1 |
| Stroke | 4 |
| Engine type | V2 |
| Capacity: | 449.00 ccm (27.40 cubic inches) |
Physical measures and capacities | |
| Wheelbase | 1,499 mm (59.0 inches) |
| Overall width | 815 mm (32.1 inches) |
| Overall length | 2,190 mm (86.2 inches) |
| Seat height | 960 mm (37.8 inches) If adjustable, lowest setting. |
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Aprilia MXV 4.5 dimensions and frame | |
| Exhaust system | Conforming to FIM standards for 2009. |
| Rear brakes diameter | 240 mm (9.4 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 270 mm (10.6 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 110/90-19 |
| Front tyre dimensions | 80/100-21 |
| Rear suspension | Pro-Link with Sachs monoshock, adjustable in compression and rebound. |
| Front suspension | 50 mm Marzocchi upside down fork with adjustments for compression and rebound. |
| Frame type | Cr-Mo steel perimeter frame with aluminium alloy vertical members. Headstock rake angle 26.2°. Lightweight rear frame section. |
Speed and acceleration | |
| Color options | Red off |
| Fuel capacity | 7.40 litres (1.96 gallons) |






































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