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Hydrostatic 2 Wheel Drive Motorcycle – Raccoon

By Paul Crowe

Hydrostatic 2 Wheel Drive motorcycle

Just got this photo from Jeff Parker, you know him, he’s the guy from Hydraulic Innovations who built the hydrostatic drive diesel motorcycle we covered last May. Well, Jeff is hard at work in the super secret hydraulic innovations skunk works and he’s almost finished with this hydrostatic 2WD motorcycle. Jeff calls it the Raccoon.

Can you imagine this little bruiser out on the trails? I think it looks great and as soon as we have more details we’ll give you the full story.

Correction: This 2WD is a gas powered (8 hp Honda) motorcycle, NOT a diesel as originally stated.

UPDATE: It’s finished!

Related: Hydrostatic drive diesel motorcycle

Hydrostatic 2 Wheel Drive trail bike in progress

Posted on February 1, 2008 Filed Under: Motorcycle Builders, Motorcycle Technology


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Comments

  1. mathieu says

    February 1, 2008 at 10:37 am

    interesting little thing.

  2. Phoebe says

    February 1, 2008 at 10:45 am

    I have no idea how that works, but that is sooo cool!! I love it!

  3. taxman says

    February 1, 2008 at 11:12 am

    Ian Drysdale did something like this back in 1999 didn’t he? maybe it’s not the same. i do like the idea. and this is a neat looking trail bike.

    drysdales bike info:

    http://home.mira.net/%7Eiwd/2x2x2/tech/2wdoverview.html

  4. JC says

    February 1, 2008 at 11:38 am

    Rokon too, they have advertised in Popular Science and Popular Mechanics for years.

    http://www.rokon.com/about/index.htm

    IMHO, it’s an answer to a question not very many people ask, so it’s got to be a really small market space.

  5. kneeslider says

    February 1, 2008 at 11:54 am

    Rokons are not hydrostatic drive, I believe they are belt or chain drive.

  6. pghcyclist says

    February 1, 2008 at 12:02 pm

    I love the dual cantilevered wheels.

  7. todd says

    February 1, 2008 at 3:15 pm

    If I had the time and the money I would be doing things people thought were a waste of time and money too.

    I like it and hope him the best. Hopefully Honda buys it and uses it as an update for their Trail 90-110 model. Imagine how many motorhomes would love to be toting one of these around.

    -todd

  8. akbar says

    February 1, 2008 at 4:44 pm

    looks like a blast to me. My first two wheeled vehicle was a little lawn mowered powered turd, but I had a lot of fun on it. This looks like much more fun, perhaps I will buy one for my son and we will see who rides it more

  9. steve says

    February 1, 2008 at 5:42 pm

    I think the design has merit for certain applications, like the ecorider. http://www.ecorider.com/

  10. B*A*M*F says

    February 1, 2008 at 6:47 pm

    Aside from the lack of suspension, I’m pretty enamored with the thing.

  11. chappy says

    February 1, 2008 at 8:31 pm

    Very cool, if reliable it could be a neat alternative to a Rokon. The way it gets power to the wheels will make for more frame options (and possible styling options), plus it is simple.

    I just want to know when they are going to make one more along the lines of a enduro with suspension.

  12. wendell says

    February 1, 2008 at 9:48 pm

    It looks like a garage door in the background, you guys have no excuse whatsoever.

  13. Jeff Parker says

    February 2, 2008 at 12:28 am

    It does have a few inches of seat suspension. I know it’s a little crude, but if you look under the seat there is a shortened upside down leaf spring. The only reason I didn’t build it with real suspension was for weight reasons. Don’t take it too seriously, It’s just a big experimental toy!
    Jeff Parker

  14. coho says

    February 2, 2008 at 12:37 am

    Ditto what todd said.

    Well done, Jeff.

  15. Den says

    February 3, 2008 at 12:30 am

    Beaut’ work!

    It looks very much to function like the Rokon, I do think it could be great with a diesel engine.

    The Drysdale prototype was also hydrostatic 2WD, but also featured hub stearing at both ends, the machine was also a two stroke and geared more towards the enduro side rather than the slow trail Rokon Idea.

    A hydrostatic drive diesel 2WD superbike with hub stearing up front would be brilliant, I would build one myself but I am too talentless, poor and unmotivated.

  16. pghcyclist says

    February 8, 2008 at 2:02 pm

    Huh Didn’t see it before but I really like the leaf spring on the rear of the seat. Its a simple and elegant solution.

  17. Don says

    May 22, 2009 at 7:09 pm

    Fantastic looking bike. How fast is it capable of going ? Any issues with overheating or cavitation of the pump with such a small reservoir ? Low end power ? Does it perform anything like a Rokon ?

  18. Richard says

    July 15, 2009 at 12:50 am

    Long overdo,it’s bad to the bone, I think I would beef up the front fork.

  19. Paul Yak says

    January 3, 2010 at 11:12 pm

    Bloody GREAT! Anything that looks at the 100+ yr old design of a motorbike and tries something different is cool with me.

    BUT Anybody who can reduce losses of the crank power to back wheel power will be the biggest success. 20% loss of a standard bike is huge, you think of how much effort goes into gaining 30hp reliably on a Sport motorcycle. Then imagine either instantly having up to 30hp of extra power or reducing power at the crank by 30hp and having the same back wheel power. I can dream can’t I!

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