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All design solutions on the uncompromising MXV 450 have been dictated by the need to achieve the highest possible level of performance while extending the bike’s range of use. The under-seat exhaust, for example, features a brand new path for better motocross performance with more torque at lower revolutions.
Valve gear based on a single overhead cam and four titanium valves per cylinder gives the best possible compromise between compactness, light weight, and performance. Thanks to its advanced technology the 45.2 engine is extremely civilized and silent running even in this motocross version, and complies easily with FIM rules for noise emissions (94 decibel threshold).
The MXV 450 affords beautifully easy access for maintenance (plugs, oil filter, air filter), and boasts extended maintenance intervals, far above the average.
The engine has a dry sump lubrication system with the oil tank integrated inside the crankcase. Elimination of the external oil tank and its connecting pipes has led to a further reduction in weight.
The starter motor has been eliminated for the same reason. Starting is by kick-start only in order to minimize weight.
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| INSURANCE |
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| MANUFACTURER |
Aprilia |
| MODEL YEAR |
2009 |
| MODEL |
MXV 450 |
| M.S.R.P. * |
$8,499.00
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| LENGTH |
86.2 in. (2,190 mm) |
| WIDTH |
32.1 in. (815 mm) |
| GROUND CLEARANCE |
13.4 in. (340 mm) |
| WHEELBASE |
59 in. (1,499 mm) |
| SEAT HEIGHT |
37.8 in. (960 mm) |
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| ENGINE |
77° V-twin 4-stroke, single overhead cam with rocker operated exhaust valves, chain timing drive, 4-valve heads, titanium valves |
| DISPLACEMENT |
449 cc |
| BORE X STROKE |
3 x 1.9 in. (76 x 49.5 mm) |
| COMPRESSION RATIO |
13:1 |
| FUEL SYSTEM |
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) |
| STARTING |
Kick start |
| CLUTCH |
Multi-plate in oil bath, cable operated |
| COOLING |
Liquid |
| EXHAUST |
Conforming to FIM standards for 2009 |
| LUBRICATION |
Dry sump, separate gearbox lubrication |
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| TRANSMISSION |
4-speed |
| PRIMARY DRIVE |
Spur gears
Transmission Ratio: 23/65 |
| FINAL DRIVE |
Chain
Transmission Ratio: 14/49 |
| GEAR RATIOS |
Motocross Gear Ratios:
1st: 14/29
2nd: 15/26
3rd: 17/25
4th: 19/24 |
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| BRAKES |
Front: 270 mm lightweight stainless steel floating disc with Nissin floating caliper
Rear: 240 mm lightweight stainless steel disc with Nissin floating caliper |
| WHEELS |
Black anodized aluminum alloy
Front: 1.6 x 21 in.
Rear: 2.15 x 19 in. |
| TIRES |
Front: Dunlop 80/100-21 51M
Rear: Dunlop 110/90-19 62M |
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| FRAME |
Cr-Mo steel perimeter frame with aluminum alloy vertical members
Lightweight rear frame section |
| SUSPENSION |
Front: 50 mm Marzocchi upside down fork with adjustments for compression and rebound
Rear: Pro-Link with Sachs monoshock, adjustable in compression and rebound |
| RAKE |
26.2° |
| Insurance: |
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* Manufacturer's Suggested Retail Price (MSRP) if shown for a vehicle excludes set-up, freight, taxes, title, licensing or other dealer charges, and is subject to change. Individual dealer prices may vary. Please request a quote or contact the PowerSports Network Dealer nearest you for specific pricing. |
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