sport car auto fromot: Aprilia MXV 450 2010 2009 First Look

Aprilia MXV 450 2010 2009 First Look

Equipped with Aprilia’s race-winning 452cc electronic-fuel injection 77-degree V-Twin engine, the 450 MXV allows riders to choose between two unique ignition settings. The factory default setting - dubbed the “Big Bang” - delivers exceptional rideability, control and traction, due to the closed firing gap between the two cylinders. By activating the “Screamer” setting, the firing gap is changed to a standard for a 77° V-Twin, translating into maximum engine performance for seasoned experts who want to really push the competition’s buttons – and the 12,500 rpm limit. It's so... exactly what you would think a dirt bike would like from Aprilia. Sleek but overly complicated, smooth yet somehow cobby. I think it's cool that brands like BMW and Aprilia are finally ready to play in the dirt but higher MSRPs combined with goofy "innovations" are going to keep these things out of many garages. I would only buy one if I hit the lotto and as a conversation piece at that. Amazing technological exercise but I can't see hustling one around a mx course. I don't get the point of these bikes, they seem barely competitive against the 450 singles as is, their added weight, complexity and notorious unreliablity don't seem to warrant turning them into motorcross bikes imho. I could see if they were bomb proof and had a wide ratio tranny they might make killer desert racers but I'd never ride one farther from my truck than I'd like to walk

Aprilia showed a lot of interest. I actually think that a certain amount of '07 Model SXV 4.5's are available for conversion through Sands' shop, or will be soon for something like $11-12k. Maybe Aprilia will take it further and build treet legal ones if enough interest is shown. I'd sure love to be able to buy one!
The MXV’s sophisticated electronic engine management system also has a number of motocross firsts. The Dell’Orto fuel injection system with 38 mm throttle bodies is managed by a programmable electronic control unit (ECU) that allows riders to switch between hard/soft mappings at the touch of a button on the handlebars. There are some innovative features on this bike. I like the adjustable firing and adjustable power profiles. Being a V-Twin is also cool, but I'm surprised this little twin "only" revs to 12,500. That motor looks very compact!

The engine features dry sump lubrication with the oil tank integrated inside the crankcase. Separate lubrication for gearbox and engine keep oil efficient for longer, contributing to longer than traditional maintenance intervals.

A valve gear based on a single overhead cam and four titanium valves per cylinder provide the ideal balance of compactness, light weight and performance. Thanks to its advanced technology, the Aprilia off-road V-Twin engine is extremely civilized and silent running even in this motocross version. It complies easily with FIM rules for noise emissions.