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1000cc twin duner?

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who wouldn't like to see one of these in a dirtbike chasis, extended swigarm, and paddles, possible even turboed, hitting the dunes?

BRP

http://www.rotax.com/NR/rdonlyres/CA0FA699-D264-4EAC-B444-44E07515FEB6/0/Thumbnails.jpg

http://www.rotax.com/en/Engine/2004/Motorcycle/Engine.Models.htm

RC51

http://www.motorcycledaily.com/031903rc51.jpg

TL1000

http://212.227.227.153/mopedfahrer/images/tl/tl_engine.jpg

personally i think the BRP would fit better with its 60* configuration. they all seem to be rated at around 140hp. i beleive the BRP motor is found in aprilias. not sure. didn't list the ducati 999 motor because it'd probably be to expensive.

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better off putting one of those in a quad. it would be pretty pointless in a bike.

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id put and inline 4 like the busa in a quad.

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Streetbike motors get schooled in dunes by big snowmobile motors in quades. You dont have to shift them and motors are lighter and just as much power.

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How about this one. It WOULD fit into a dirt bike chassis as that's what it's made for. Comes in 450cc and 550cc versions. Not exactly the mega-HP bomber you had in mind, but it is a twin...

rxvenginecrop4ak.jpg

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yeah i love that new aprilia motor. its really light weight too. if they get popular i might buy one. a while back cycle world was stating the 450 makes 70hp with half the valve maitenance of single cyl. 450s. not sure if any of it is true or not, but if it is then thats the 450 to own off-road.

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hey how the heck do you start it.......it dont even have a pull start???????????

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The Aprilia 450 has around 60 hp and the 550 has 70hp. The 550 is also supposed to be a torque monster and completely unmanageable for anyone but an expert unless used in the supermoto bike. And as far as dirt bikes with RC51 engines in them; I have seen some hill climb bikes with them.

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btw, did aprilia make that motor in house

Yes, inhouse, no Rotax involvement.

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