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Old 01-18-2004, 07:53 AM   #1
F451
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Default Re: Christini All Wheel Drive Motorcycle

Although no longer a dirt bike rider I do applaud this upcoming technology and hope in some way it transfers over to cruisers, tourers and other bikes as it could prove to make them safer.
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Old 01-18-2004, 07:58 AM   #2
FrankS1
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Default Re: Christini All Wheel Drive Motorcycle

I'm still trying to bring myself to accept those fat tire dual chain drive jobs, powered by Briggs&Statton. All this newfangled technology is too much for me.



On a slightly more serious note, the bevel drive at the front comes across to me as a problem waiting to happen. If it's wide open, as on the prototype, I'd give it about two muddy water crossings or a day in the California dunes before it wore smooth. And if it's enclosed, there's no way to avoid having a bunch of unsprung weight in a place it's most definitely NOT wanted.
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Old 01-18-2004, 10:54 AM   #3
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Good point about the vulnerability of those exposed gears! Can't imagine this surviving the Dakar Rally like the Yamaha system did -- they just got a 7th place finish today -- only non-KTM in the top 25.



It is an interesting concept, and it is nice to see people thinking in innovative ways, but as you point out, looks like some more development work is needed.
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Old 01-18-2004, 02:53 PM   #4
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Default Re: Christini All Wheel Drive Motorcycle

Strikes me as an answer to a question nobody asked. Looks fragile too.
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Old 01-18-2004, 05:11 PM   #5
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Default Re: Christini All Wheel Drive Motorcycle

Yah, just what I need. Another drive system on my dirt (or street) bike to contend with. I can't imagine the maintenance this thing requires. I'm sure it helps the rider go faster and farther, and the top-ten finish of the AWD Yamaha in Dakar against KTM's assault proves. But it it practical and afforable for us peons? If Mike Lafferty starts winning races on one, I'll believe it.
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Old 01-18-2004, 06:28 PM   #6
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Default Re: Christini All Wheel Drive Motorcycle

It sure looks fragile and exposed, on the other hand, the hydraulic system on the new Yamaha just netted them 7th place in the first Dakar for the bike as well as the rider.

Pretty respectable!
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Old 01-18-2004, 08:29 PM   #7
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Default Re: Christini All Wheel Drive Motorcycle

Yes, I agree. This looks like it's only applicable on dirt bikes.
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Old 01-19-2004, 06:29 AM   #8
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Really impressive finish, especially when you also figure that they gave up 200+ cc on the KTMs.



3 stage wins too, just to emphasize the point.



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Old 01-19-2004, 06:34 AM   #9
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Reportedly, Yamaha have track tested this on a prototype R1, in both wet and dry conditions. Every test rider reported much faster lap times and much more confidence in the wet, and the same, but to a lessor degree in the dry. There is a writeup in one of the on-line magazines I'll see if I can find.



The system allows the amount of power transferred to the front to be controlled to avoid overpowering the front tire.
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Old 01-19-2004, 07:05 AM   #10
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Default Old Article on 2WD R1

www.biker.co.nz/Reviews.asp?id=130
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