Yahama R1 two wheel drive (vid)

**Soltakr** · 07-08-2009, 10:32 AM

It was just a matter of time,

**310stanger** · 07-08-2009, 04:01 PM

like that bike needed to go faster lol

**grouch0jr** · 07-08-2009, 05:47 PM

i dont see how this could help at all. if anything the hydrualic pump will cause losses, and the gains from the 'motor' on the front wheel cant be more than negligible.

**Transamws6** · 07-08-2009, 06:22 PM

That things gotta be a bitch to launch from a stop.. or not.. wouldn't it just do the same thing as a rear wheel drive bike since i'm guessin they didn't add much weight to the front... whats the point of this little project lol it might of helped handling a little in bad conditions i guess but other than that this is kinda pointless imo...

**gd1996** · 07-08-2009, 07:55 PM

I'm happy with my 1wd r1 lol, not something I want but still kinda cool.

**Soltakr** · 07-09-2009, 07:19 AM

Originally Posted by grouch0jr

i dont see how this could help at all. if anything the hydrualic pump will cause losses, and the gains from the 'motor' on the front wheel cant be more than negligible.

They found mpg increase proving better efficiency. weird huh

**ibanez7** · 07-09-2009, 07:33 AM

great design that is fairly lightweight... my concern would be how much torque is behind the hyrdaulic set up, meaning how much resistance can the front wheel handle until the system fails and the front wheel becomes floating.

I see many advantages to this system... anyone who knows basic physics or has ever driven something rwd drive or a bike knows the friction resistance against the front wheel is what causes the back end to spin out. With a front wheel on a bike having its own power to combat the rolling friction, you will be able to take turns faster without the back wheel sliding out.

**Soltakr** · 07-09-2009, 08:16 AM

Im thinking endless stoppie.

**Mean Green Z28** · 07-09-2009, 08:42 AM

Originally Posted by Soltakr

Im thinking endless stoppie.

lol ... exactly!!!

**grouch0jr** · 07-09-2009, 08:49 AM

Originally Posted by Soltakr

They found mpg increase proving better efficiency. weird huh

i wish they gave numbers. no matter what the total power HAS to be less.

Originally Posted by ibanez7

great design that is fairly lightweight... my concern would be how much torque is behind the hyrdaulic set up, meaning how much resistance can the front wheel handle until the system fails and the front wheel becomes floating.

I see many advantages to this system... anyone who knows basic physics or has ever driven something rwd drive or a bike knows the friction resistance against the front wheel is what causes the back end to spin out. With a front wheel on a bike having its own power to combat the rolling friction, you will be able to take turns faster without the back wheel sliding out.

ideally wouldnt you want 50/50 power distribution?

**ibanez7** · 07-09-2009, 09:03 AM

Originally Posted by grouch0jr

i wish they gave numbers. no matter what the total power HAS to be less.

ideally wouldnt you want 50/50 power distribution?

most definitely, however even if its 30/70 or 40/60 or 20/80... the difference does allow you to push the bike harder through the turns

**grouch0jr** · 07-09-2009, 09:15 AM

Originally Posted by ibanez7

most definitely, however even if its 30/70 or 40/60 or 20/80... the difference does allow you to push the bike harder through the turns

i have a hard time beleiving its even 20/80, but i see what youre saying.
i dont ride motorcycles, and never think about turning, haha.

**Mean Green Z28** · 07-09-2009, 09:18 AM

they need to put it in this bike ... http://www.motoczysz.com/main.php?area=07C1 ... with all the innovations of the Motoczysz, that'll just be the cherry on top and should dominate the MotoGP!

**cammed goat** · 07-09-2009, 09:35 AM

Interesting design. Alot better than the Suzuki NUDA concept of the late 80s.

**Spaz** · 07-09-2009, 09:56 AM

Originally Posted by ibanez7

most definitely, however even if its 30/70 or 40/60 or 20/80... the difference does allow you to push the bike harder through the turns

if it had a varied controlled for it almost like a lsd kinda deal it would be very practicle... with out something like that i'd be worried about that front tire spinning under throttle on a tight corner...

**Mean Green Z28** · 07-09-2009, 10:07 AM

Originally Posted by Spaz

if it had a varied controlled for it almost like a lsd kinda deal it would be very practicle... with out something like that i'd be worried about that front tire spinning under throttle on a tight corner...

wonder if that additional cable running into it on the hub is some sort of proportioning valve adjustment to adjust that according to throttle input/speed/etc.

**grouch0jr** · 07-09-2009, 04:00 PM

Originally Posted by That Guy 2-1

wonder if that additional cable running into it on the hub is some sort of proportioning valve adjustment to adjust that according to throttle input/speed/etc.

there are two lines, one for a hydraulic supply and one for a return.