Wow... I need this. Seriously, I neeeeeeeeeeeeeeeeeeed this...

Started by BellissiMoto, February 22, 2011, 09:10:06 PM

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Monster Dave


Doctor Woodrow

Also, how do they compensate for the reduced distance traveled by the rear tire when turning in a circle: do they just always skid one wheel? Unless you have some sort of differential (yes I know that Diffs are usually from side-to-side, but work with me here) to deal with the speed differences. We all know that the rear tire travels in a smaller circle than the front. The difference might not be much, but it would accumulate gradually until the strain on the chain required some slippage somewhere.

The Doc
2005 620 Dark "Zerafina", High mount Termi's, Cyclecat rearsets and clipons. Axio "Repsol" Hardpack backpack. Some of us put the 'Damn' in Crash Damnage.

Speedbag

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Spck31


Statler

It's still buy a flounder a drink month

duccarlos

If you're building an AWD bike, it should definitely not be chain/belt driven. Friction drive? But you would then have the turn issue again.
Quote from: polivo on November 16, 2011, 12:18:55 PM
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Speeddog

The dude can make some interesting SolidWorks images.

Chance of that bike ever turning a wheel, 0%.
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DukeDenver

Looks like it was taken out of the terminator salvation movie  [thumbsup]

He Man

Quote from: duccarlos on February 23, 2011, 02:33:26 PM
If you're building an AWD bike, it should definitely not be chain/belt driven. Friction drive? But you would then have the turn issue again.

Ohlins made a an R1 AWD, it was hydraulic/fan driven. kinda like a speedo cable.

it was prettty cool. Whats the point of an AWD bike anyway?

jvax

Quote from: duccarlos on February 23, 2011, 02:33:26 PM
If you're building an AWD bike, it should definitely not be chain/belt driven. Friction drive? But you would then have the turn issue again.

unless you put another sprocket higher on the front forks, say at the level of the bottom triple, so that the front chain is vertical (parallel to the forks) and can turn with the entire front end.  but then it would be an entirely different design that this one...

'08 R1200GS
'10 M796 ABS Black (Sold)

Spidey

Let's pretend we can put the "it can't turn" thing aside for a moment.  Wouldn't a bike with power input to the front pretty much guarantee that constant front-end lowsides?  What a nightmare. 
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He Man

Low sides happen because lost of traction, either from spinning the front up to fast, or from slowing it down to much.
i think the same concept falls into play as in the rear wheel, so dont hit the gas too hard?

But then a rear wheel slide is managable, the front isnt. So it works, but applicable in racing? probably not.



phildo

AWD seems to make more since on the dirt, but even then it seems like way more trouble than it would be worth??
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thought

'10 SFS 1098
'11 M796 ABS - Sold
'05 SV650N - Sold

BellissiMoto

Quote from: He Man on February 23, 2011, 09:26:56 AM
i like it.

The chain doenst turn with the front wheel. It just spins a hub and that hub is allowed to pivot. But it donst look like you could turn the wheel that much unless u push the chain further out.

really cool design, but poweroutput would SUCK cause that HUGE chain would take up a good chunk of power.

But it does have a 4 cylinder 2+ liter boxer motor, so it should have plenty of power.

Naturally this is all theoretical, but its fun to dream. Of course my dream would have this bike equipped with a machine gun on one side, and a small rocket launcher on the other.....  [evil]