2010 Aprilia MXV 450
All design solutions without compromising on 450 MXV have been determined by the need to achieve the highest level of performance while extending the use of bicycles. Chair-down exhaust pipe, for example, featured a brand new road for better performance with more torque, motocross at low revs. Valve gear based on the single overhead cam and four titanium valves per cylinder gives the best compromise between a compact, lightweight and performance.
Thanks to advanced technology, highly civilized and the 45.2 engine still running even in the motocross version, and in accordance with FIM regulations easier for the emission of noise (94 dB threshold).
The MXV 450 affords beautifully easy access for maintenance (plugs, oil filters, air filters), and has extended maintenance intervals, far above average. This engine has a dry flood lubrication system with oil tank is integrated in the crankcase. Elimination of external oil tank and pipes that connect has caused a further decline in body weight.
Starter motor has been eliminated for the same reason. Getting started is to kick-start only to lose weight.
The important specifications of the engine in MXV 45.2 new:
* Electronic fuel injection.
* Dry Flood lubrication with oil tank integrated inside the crankcase. Separate lubrication for gearbox and engine to keep the oil for longer efficient.
* Single overhead cam, titanium valves.
* Single-piece crankshaft.
Cylinder * integrated in crankcase, wet liners.
* Options “Big Bang” and “Screamer” ignition settings.
* “Hard / soft” mapping is selected from the handlebars.
Stepper Motor Electronics * idling control.
* Engine maximum speed 12 500 rpm.
Aprilia MXV 450 red
CHASSIS: LIGHTER THAN EVER
Dimensional framework has been optimized to limit the use of motocross, and the whole framework has been developed to complement the engine. design is unique among frame motocross. A tubular steel trellis is interference fitted to pressed aluminum side plates to form a single structure. This machine is also an integral part of the chassis, acting as load-bearing elements and contributing to exceptional overall rigidity.
Particular care has been taken over the distribution of weight. Weight has been centralized as far as possible to enhance the agility in all conditions.
Weight (one of the most important aspect of any bicycle motocross) is central to design every part of the MXV, from the brake disc to the frame.
This suspension has been designed for lightweight and maximum elasticity and combines hydroformed members. The system offers improved linkage is damped by an adjustable Sachs monoshock fully race with two damping settings for high and low speed ride.
Side down Marzocchi fork has 50 mm cage and also calibrated for motocross. fork is fully customizable, so you can set their own suspension action exactly as you want.
The fuel tank has been redesigned to keep the bike’s center of gravity as close as possible to the physical center of the machine. Attention has also been given to remove the parts that stand out to reduce the width and improve ergonomics.
Centralization is also heavily influenced the design of a filter box. Filter is now located at the front of the bike, leaving the fuel tank more room to extend the rear shock absorber.
Grid filters also play a throttle body filter and facilitate change.
ECU and all electrical system components are also stored securely in a box filter.
Exhaust system, silencer under the seat and twin tail pipes made entirely of titanium (pipes and silencers).
Batteryless minimal electrical systems, and fully integrated in the filter box. Machinery and electrical systems so as to form a single block.
The two-tone seat helps the rider stepped maintain its position at any time.
Brakes
Technology unparalleled performance and chassis supported by a fantastic braking system. The MXV equipped with Nissin floating caliper and super-lightweight wavy discs (270 mm at the front), for unparalleled braking control in even the most challenging conditions.
A 240 mm rear disc with Nissin single piston caliper provide the perfect balance between strength and ease of braking control.
Aprilia MXV 450 from top
SPECIFICATIONS
- Engine: 77° V twin four stroke. Liquid cooled. Single overhead cam with rocker operated exhaust valves, chain timing drive, 4 valve heads, titanium valves.
- Fuel: Lead-free petrol.
- Bore x Stroke: 76 x 49.5 mm
- Total displacement: 449 cm3
- 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.
- Exhaust: Conforming to FIM standards for 2009.
- Generator: 220 W
- Lubrification: Dry sump. Separate gearbox lubrication.
- Gear box: 4 speed. Motocross gear ratios: 1st 14/29 2nd 15/26 3rd 17/25 4th 19/24
- Clutch: Multi-plate in oil bath, cable operated.
- Primary drive: Spur gears. Transmission ratio: 23/65.
- Final drive: Chain. Transmission ratio: 14/49.
- Frame: 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.
- 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 anodised aluminium alloy. Front: 1.60 x 21”. Rear: 2.15 x 19″.
- Tyres: Front: Dunlop 80/100-21 51M. Rear: Dunlop 110/90-19 62M.
- Dimensions: Overall length: 2,190 mm Overall width: 815 mm Ground clearance: 1,285 mm Seat height: 960 mm Wheelbase: 1,499 mm
- Fuel tank capacity: Capacity 7.4 litres.
2010 Aprilia MXV exhaust
