Aprilia MXV Idea At Malpensa
After Aprilia has shaken up the Supermoto World Championship and in the Enduro World Cup wins already import, here's a really hard Herauforderung to Aprilia: Win with 2 cylinders in motocross. To achieve this ambitious goal, the Aprilia MXV changed thoroughly. There was a crosser for the driver does not compromise.
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| Aprilia MXV Malpensa With 2 cylinders and 2 possibilities the engine individually to the driver, now with Aprilia mixes well with motocross. |
Marco Segnana in conversation: "Before the test, I was a little biased - two-cylinder, heavy, motocross motorcycle from Italy ... The first surprise overtook me already when you sit on the seat position was me from my years of experience on Japanese motocross forth instantly familiar After a.. few laps of the very rapid rate at Malpensa I was amazed at the ease of the RXV. "
A glance at the data confirmed almost unbelievable: the Aprilia weighs 107 kg - just 100g more like a Honda CR450! The liveliness of the V2 engine further underscores the feeling of a light 250 'to sit it.
Requires a little getting used to but the more distant position of the footrests. If you stand for jumps in the catches increases the RXV to very steep. Then the control of the flight path with very little power consuming-sourced handlebars. The position of the pegs brings but especially in fast passages, standing a very good controllability.
A share of the good tracking bears sure the CR-MO steel perimeter frame with aluminum castings as composite members. The seating position allows good legs together and you can press the MXV very well in tight corners. The traction is as good as the BMW450. Here is the V2 engine comes into its own. The MXV is about an inch narrower than eg a Honda CR450. The steering angle is 26/2 °.
The 50mm Marzocchi upside down fork is adjustable to train and rebound. For large cracks should be a slightly stiffer spring installed. At the rear, a Pro-Link with Sachs monoshock, adjustable in compression and rebound. The MXV frame is the typical example of the innovative Aprilia competence. The CR-MO steel perimeter frame is made of aluminum castings as composite members. The rear frame is ultra light.
A mass concentration was achieved by the displacement of the tank under the seat. The lightweight air filter wandered forward and provides optimum protection from above and optimally accessible from dust.
Kerstück the MXV is the engine. V2 is not just 2 cylinders. When Aprilia get quasi 2 engines in one: a few simple steps can make a "torque motor" on "performance engine". The secret is the timing of the firing order. Known from the GP machines under the name "Big Bang" is the firing of the two cylinders merged and you get a whopping torque curve at low rpm range.
BIG BANG phasing (state series)
During the entire engine cycle, the explosions between cylinders close together instead of the well-known uniform distribution in a "screamer" cycle. "Big Bang" has the typical twin-cylinder engine characteristics and delivers optimum performance, provides better driving you better traction, especially on slippery surfaces.
- His strength is the best acceleration and traction on any type of ground.
- The MXV is supplied with the "Big Bang" phasing configuration.
- Easy handling for amateurs, for riders who love a 250 4-stroke
Screamer phasing (standard V-Twin)
During the complete engine cycle, the explosions between cylinders regularly
The "Screamer" phasing maximizes the motor for high performance and is more suitable for experts.
- His strength is its high power.
- Best Power for professional drivers: 58 HP.
- The change in the timing of the rear cylinder camshaft and
- The update of the mapping in the ECU.
Another variation of the power delivery can be achieved by simply switching between 2 mapping of the ECU for the Dell'Orto perform injection: "soft" and "hard" (or wimps ....). To improve the starting behavior in hot and cold conditions, the throttle bodies are fitted with a "stepper motor" equipped. Nervous drivers can now when Ankicken make mistakes. The two-cylinder sonorous sound escapes a titanium exhaust system made entirely in conformity with FIM 94db volume.
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