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2stagebikes now up

Discussion in 'Downhill & Freeride' started by ÆX, Dec 14, 2005.

  1. ÆX

    ÆX Turbo Monkey

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    http://www.2stagebikes.com/page/151


    after reading about how theres works
    they blow through one length of travel b/f the other shock kicks in.
    so any pedal feedback and they do have some come late in the 9''
    when you are generally coasting. at least they gave me some credit
    to the design.

    alex
     

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  2. xy9ine

    xy9ine Turbo Monkey

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    nifty widget:
     
  3. ChrisRobin

    ChrisRobin Turbo Monkey

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    Coolest thing I've seen in a long time.
     
  4. Downhiller

    Downhiller Turbo Monkey

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    weird...
     
  5. Polandspring88

    Polandspring88 Superman

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    Reminds me of a bike that I saw back a few years ago. I think it was made by Kestrel, but it was a similar design that incorporated two shocks.
     
  6. ÆX

    ÆX Turbo Monkey

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    it uses the principal of one shock for stutters then that one

    bottoms it goes to the other for big hits. but it was more

    to get a lower leverage back when they didn't make 3'' stroke

    shocks. the kestal doesn't have two pivots.

    this 2 stage has two but is not making full use of them not allowing

    the shock to work at the same time. but all you would have to do is

    run = presure in them.

    I have always like the 2x4. the only thing holding it back in terms of

    sales was my material.


    they will sell a lot of these and not just in NZ!
     
  7. manhattanprjkt83

    manhattanprjkt83 Rusty Trombone

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    intresting...
     
  8. dexter

    dexter Turbo Monkey

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    id hit it
     
  9. DHS

    DHS Friendly Neighborhood Pool Boy

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    i like it.
     
  10. JAB

    JAB Chimp

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    That is one of the coolest bikes I've seen in a long time. I have some concerns though:

    First, if the lower shock compress only after the upper one is bottomed out you probably will go through a lot of shock seals/bushings (bottoming out is never good).

    Second, judging from the little suspension mapping video on the introduction page (and of course basic suspension knowledge) you seem to get two VERY different axel paths depending on wich shock being compressed. When the upper shock is being compressed you seem to get a vertical/forward axel path (low pivot-point single pivot design). The second shock gives a rearward path (high pivot-point single pivot design). This could make potentially make for some funky cornering caracteristics.
     
  11. JAB

    JAB Chimp

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    BCD didn't you make a frame with two shocks that allowed the rear wheel to move in any arc within a confined space or am I thinking of another guy??
     
  12. bballe336

    bballe336 Turbo Monkey

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    I'd definitely like to try one out. How well do they pedal?
     
  13. ÆX

    ÆX Turbo Monkey

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    \

    yes i did the very first two axle path bike. making a zone the wheel can move in. some say this guy ripped me off. he is using my idea.
    so did cannondale though. whatever.



    http://bcdracing.com/frames/2x4/alex.htm

     
  14. JAB

    JAB Chimp

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    Yeah thats the one!! When I saw that bike for the first time I thought it would revolutionize the concept of rear suspension.I assume you didn't apply for international patents??
     
  15. JAB

    JAB Chimp

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    bcd tell me how you would set up the shocks for that bike: wich spring rate for wich shock, rebound adj for wich shock etc...How did it ride?

    I still think its one of the best ideas out there and i would LOVE to own one.
     
  16. WheelieMan

    WheelieMan Monkey

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    While I like the idea of using two shocks, I fail to see how the design creates a "stable platform." Seems like they simply noticed the popularity of the term and decided it woud suit their design...

    And like BCD said, running higher pressure in the "high pivot" shock basically eliminates the the zone of travel, which is in my opinion the only reason to use two shocks. I am surprised by the focus on the so called "stable platform" and 2-Stages of travel when in reality the advantage of the two-shock design is the ability to create a zone of travel.
     
  17. spacemanspiff06

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    that's got one screwy axel path, any reviews on it yet?
    i remember making a model bike almost exactly like that out of legos oh so many years back. i also came up with VW's turbo/super charger a year before i heard them do anything about it. i also invented the internet. (sry, just realized how lame this post got.)
    anyway, sick bike.
     
  18. caputo1989

    caputo1989 Turbo Monkey

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    Realy cool, but why not run a multiple weight spring?
    Id be interisted in trying one out for a day. then see the long term cons of the design.
     
  19. Tame Ape

    Tame Ape BUY HOPE!!!!!!!

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    oh man! Now some one needs to put a floating BB shell in there too!
     
  20. trailhacker

    trailhacker Turbo Monkey

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    It said on the site somewhere that they used the air shocks for a year and a half with no failures. They even avoided maintenance to put it in a worst case scenario.
    You got to figure these guys have no $ to pay a guy like Rankin to ride the bike but he still does. Has to say something?
     
  21. MOTODH

    MOTODH Turbo Monkey

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    pretty cool design
    gives a new meaning to knotchy travel jk jk
     
  22. clandestine

    clandestine Monkey

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    whoa even if it doesnt work properly
    id just like to show it off haha
     
  23. S.K.C.

    S.K.C. Turbo Monkey

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    It looks like a killer design - and props to BCD for being part of the evolution of the beast with the 2X4. :)

    Does anyone have measured weights for the build of the Elite 9? I'm guessing it would be a little bit lighter than your average 9" DH race bike.

    It would be awesome to see an Elite on the UCI circuit. Now THAT would be some serious field testing.
     
  24. Thrillkil

    Thrillkil Monkey

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    The concept is fascinating, now all that needs to be seen is the execution. Hope it kicks as much ass on dirt as it does on paper!
     
  25. Banga

    Banga Monkey

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    The production frames are in transit to NZ at the moment, the steel proto feels pretty decent weight wise.

    There should be at least 2 being raced in Europe next season, the NZ season kicks off in the first week of Jan, 2stage have 2 riders,
    Nathan Rankin and Glenn Haden.
     
  26. JAB

    JAB Chimp

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    Come on, I would ride a Stinky if someone gave it to me for testing, and that is a real POS bike.
     
  27. Superdeft

    Superdeft Monkey

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    Why not have the upper pivot active first, to have the axle move backward initially and combine it with slow rebound and no compression damping for square-edge bumps and rock gardens. Then you could have the lower pivot eat the big hits with quicker rebound and low-speed compression damping?

    That said, I think that's an awful lot of extra equipment to change a relatively small problem. For my needs, I doubt the benefit of even the best-designed system using two shocks would outweigh the simplicity and weight savings of a single pivot. (however that's what the XCers said about disc v. vee as they were in their early stages for bike, so I may eat my words in a few years time)
     
  28. Sandwich

    Sandwich Pig my fish!
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    Interesting concept...imagine what you could do tuning wise...high pivot first, low pivot first, zone travel, 1-2, that could be really cool. I'd imagine it would ride the best with both shocks tuned properly, but it probably pedals poorly. I wonder what the estimated MSRP is, as well as weight.
     
  29. SlackBoy

    SlackBoy Monkey

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    from talking to the 2 riders, it pedals way better than you'd think. I thikn 2nd at the occenia's is pretty good field testing, and the fact that Rankin rode it for half the season with a broken wrist and still poduimed.
    they aren't riding for free either, I hear they get 2 chupa-chups a week, going up to 4 in the race season.
     
  30. Mugger

    Mugger Monkey

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    Dosn't that defeat the purpose of having an air shock thats light?

    Looks interesting never the less....