| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Aprilia |
| Model Name | MXV 4.5 |
| Year | 2009 |
| Category(class) | Motocross / Dirtbike |
| Engine |
|---|
| Engine Capacity (Displacement) | 449 ccm (27.4 cubic inches) |
| Engine Type | V2, four-stroke |
| Bore x Stroke | Ø76.0 mm x 49.5 mm (Ø2.99 inches x 1.95 inches) |
| Bore/Stroke Ratio | 1.54 |
| Compression Ratio | 13.0:1 |
| Fuel System(Carburetion) | Injection. Integrated engine management system controlling ignition and fuel injection. Throttle body: 38 mm. Hard and soft mappings selectable from the handlebars. |
| Ignition | Electronic digital (batteryless). |
| Starter System | Kick |
| Lubrication System | Dry sump. Separate gearbox lubrication. |
| Cooling System | Liquid |
| Exhaust System | Conforming to FIM standards for 2009. |
| Powertrain |
|---|
| Clutch | Multi-plate in oil bath, cable operated. |
| Gearbox | 4 speed |
| Transmission (Final Drive) | Chain |
| Chassis/Suspension/Brakes |
|---|
| Frame Type | Cr-Mo steel perimeter frame with aluminium alloy vertical members. Headstock rake angle 26.2°. Lightweight rear frame section. |
| Front Suspension | 50 mm Marzocchi upside down fork with adjustments for compression and rebound. |
| Rear Suspension | Pro-Link with Sachs monoshock, adjustable in compression and rebound. |
| Front Brakes | Single disc |
| Front Brakes Diameter | Ø270 mm (Ø10.63 inches) |
| Rear Brakes | Single disc |
| Rear Brakes Diameter | Ø240 mm (Ø9.45 inches) |
| Front Tire | 80/100-21 |
| Rear Tire | 110/90-19 |
| Dimensions |
|---|
| Overall Length | 2190 mm (86.22 inches) |
| Overall Width | 815 mm (32.09 inches) |
| Seat Height | 960 mm (37.8 inches) |
| Wheelbase | 1499 mm (59.02 inches) |
| Fuel Capacity | 7.40 litres (1.96 gallons) |
| Performance |
|---|
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | - |
| 0-60 mph | - |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
