Quantcast

Dual Drive Kona Unit

Discussion in 'Cross Country, All Mountain & Trail Riding' started by stinkyboy, Sep 14, 2005.

  1. stinkyboy

    stinkyboy Plastic Santa

    Rep/Likes:
    1 / 0
    Joined:
    Jan 6, 2005
    Messages:
    15,195
    Location:
    ¡Phoenix!
    My LBS built this bike a while back, and I'm sure it's prolly been done before, but this is a killer bike that's a blast to ride:













     

    Please register to disable this ad.

  2. teamkranzelbike

    Rep/Likes:
    2 / 8
    Joined:
    Apr 9, 2004
    Messages:
    516
    Location:
    Mount Carmel,PA
    That is very interesting, I have thought about it, but never went through with it. looks awsome, but serves no real pourpose. always wanted to put dual rings on the front and 1 gear in the rear. one day when I find the time.
     
  3. Echo

    Echo crooked smile

    Rep/Likes:
    5 / 1
    Joined:
    Jul 10, 2002
    Messages:
    11,818
    Location:
    Slacking at work
    It looks cool as hell, but does it really make any difference when you're riding it?
     
  4. BikeGeek

    BikeGeek BrewMonkey

    Rep/Likes:
    5 / 50
    Joined:
    Jul 2, 2001
    Messages:
    4,401
    Location:
    Hershey, PA
    New for '06, Kona 2x2. :D
     
  5. MMcG

    MMcG Ride till you puke!

    Rep/Likes:
    5 / 4
    Joined:
    Dec 10, 2002
    Messages:
    15,466
    Location:
    Burlington, Connecticut
    just seems like two drivetrains to worry about maintaining to me. Cool to look at though.
     
  6. SilentJ

    SilentJ trail builder

    Rep/Likes:
    4 / 0
    Joined:
    Jun 17, 2002
    Messages:
    1,312
    Location:
    Calgary AB
    I need a setup like that on my commuter. I run such a retarded gear (44-13) that when I crank super hard climbing hills, stuff bends enough to derail my chain which normally causes things to end badly.
     
  7. stinkyboy

    stinkyboy Plastic Santa

    Rep/Likes:
    1 / 0
    Joined:
    Jan 6, 2005
    Messages:
    15,195
    Location:
    ¡Phoenix!
    I've never had it on a mountain, but I doubt it. It's just high on the coolness chart and thought I would share the cool.
    :cool:
     
  8. teambender

    teambender Chimp

    Rep/Likes:
    4 / 0
    Joined:
    Jan 11, 2004
    Messages:
    45
    Location:
    Casa de Motionboy
    It would make tensioning the chain(s) a bit easier.....Just pull back on the wheel no need to 'center' the rear wheel- like you do w/ one chain.
     
  9. peter6061

    peter6061 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Nov 19, 2001
    Messages:
    1,577
    Location:
    Kenmore, WA
    One thing I noticed when riding that bike back in January is that it pedals very 'square' meaning that there is no flex in the bottom bracket area.

    The force on the side of the bike where you are exerting pressure would normally flex the bottom bracket out to the other side but the chain on the other side keeps this from happening. I also really liked the engagement as only one side was engaged at a time, but the different locations of the freewheels in their respective rotations ensured that you were never more than a few millimeters away from the next contact point.

    Very strange feeling the first time you ride it.
     
  10. stinkyboy

    stinkyboy Plastic Santa

    Rep/Likes:
    1 / 0
    Joined:
    Jan 6, 2005
    Messages:
    15,195
    Location:
    ¡Phoenix!
    Erik offered to sell me the frame, but I pleaded with him to keep it intact, and bought a Karate Monkey from him instead. Hopefully, I'll end up owning it one day... :drool:
     
  11. Palilla

    Palilla Monkey

    Rep/Likes:
    1 / 0
    Joined:
    Jul 20, 2004
    Messages:
    102
    Nice...Phil Wood Kiss-off hub is sweet, the single-speeds are double sided and you can get them as fixed as well :evil: :thumb:
     
  12. peter6061

    peter6061 Turbo Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Nov 19, 2001
    Messages:
    1,577
    Location:
    Kenmore, WA
    From what Erik told me about this one, is he had Phil Wood cut reverse threads into the left side so he could use a left hand drive freewheel.
     
  13. Palilla

    Palilla Monkey

    Rep/Likes:
    1 / 0
    Joined:
    Jul 20, 2004
    Messages:
    102
    yep, makes sense. That's pretty cool they did that for him. Not a cheap hub to begin with, let alone custom. :eek:
     
  14. danfinger

    danfinger Chimp

    Rep/Likes:
    0 / 0
    Joined:
    Dec 9, 2009
    Messages:
    1
    Man I hope people are still sub'd to this thread because I'd love to figure out how to get a left side drive bike going.

    The custom threaded hub seems to be the expensive part, I'm also wondering how OP managed the pedal splining? That looks like a raceface crank there, which I'm pretty sure they didn't make for tandems.

    [waves magic wand] "Threadicus Ressurecticus!"
     
  15. 4xBoy

    4xBoy Turbo Monkey

    Rep/Likes:
    24 / 64
    Joined:
    Jun 20, 2006
    Messages:
    4,634
    Location:
    Furious ville
    Stinky had the other version,

     
  16. stinkyboy

    stinkyboy Plastic Santa

    Rep/Likes:
    1 / 0
    Joined:
    Jan 6, 2005
    Messages:
    15,195
    Location:
    ¡Phoenix!
    I'm told it was a tandem crank. I sold the bike awhile back to a guy in Chicago.

    If you're serious and have questions, call the guy who built it for me: Erik

    He owns : http://slipperypigbikes.com/
     
  17. cecil

    cecil Turbo Monkey

    Rep/Likes:
    50 / 900
    Joined:
    Jun 3, 2008
    Messages:
    1,739
    Location:
    with the voices in my head
    different ,but sweet
     
  18. slowitdown

    slowitdown Monkey

    Rep/Likes:
    0 / 0
    Joined:
    Mar 30, 2009
    Messages:
    555
    what is "cool" or otherwise impressive about this bike?
     
  19. KavuRider

    KavuRider Turbo Monkey

    Rep/Likes:
    4 / 3
    Joined:
    Jan 30, 2006
    Messages:
    2,601
    Location:
    CT
    :rolleyes:

    The original builder is a cool cat who builds things just to build them. To see what will happen.
    I remember him telling me about his idea. I told him "go for it". Why not?
    I think its neat.