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  1. #1
    1 bike 2 many. Butterthebean's Avatar
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    What is the point of this?

    Or is the point just the fact that it could be done?



    http://picasaweb.google.com/nahbshow...78275861599410
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  2. #2
    You gonna eat that? Doohickie's Avatar
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    I'm not sure but I think I just threw up in my mouth a little.
    I stop for people / whose right of way I honor / but not for no one.



    Originally Posted by bragi "However, it's never a good idea to overgeneralize."

  3. #3
    Senior Member subframe's Avatar
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    add extra weight?


  4. #4
    Extra Medium Member redtires's Avatar
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    That way no one can say "you took the picture on the wrong side"..


    Oh...and it would have been much more impressive if it have Record 11 speed on BOTH sides too.
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  5. #5
    Domestic Domestique UnsafeAlpine's Avatar
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    Why not? Didn't Sheldon have a 40 something gear bike? Bikes are not sacred objects that can never be touched. Do what you want with them. Make them your own, make them lighter, bigger, heavier, more useful, less useful, make them workhorses, or pieces of art. Who cares?

  6. #6
    Senior Member retroroadie's Avatar
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    Funny - it reminds of a concept record attempt bike back in the 80's (possibly a Pinarello) that had the same setup. It was intended to use both sides to get the maximum power during the initial explosive start; after that, the chain was designed to fall off to relieve the bike of weight (I'm not making this stuff up, honest!). As far as I know it never made it past the bike show concept stage.
    Last edited by retroroadie; 03-11-09 at 01:47 AM. Reason: mispelling

  7. #7
    Senior Member EatMyA**'s Avatar
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    it looks like it would distribute stress/wear & tear more evenly across the frame, Bottombracket, and the rear hub. Hence your chains, wheels, and bike would last MUCH longer. At least in theory. Plus the power you put down would all go straight towards propelling you forward, no loss.

    I thought about doing this idea about 2 months ago and decided that it would make the bike OVERBUILT. You could do it for cheap with a flipflop hub with spacers, a cheap shimano square tapered axle, and shimano crank on the right side and a suntour crank on the left.

    well you would need to reverse thread the flipflop hub. or you can use a hub that is designed to use a disk brake and a freewheel, then put a cog on that instead of a brake, and a hub on the freewheel side.
    Last edited by EatMyA**; 03-11-09 at 02:21 AM.

  8. #8
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    Maybe it is a special design to catch your pantslegs on either side !

    Really, I would agree with ' Eat " above , that it may be for balancing torque, equally, to the entire bike,,, but I don't see a need for it.

  9. #9
    Pwnerer Wordbiker's Avatar
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    It was made so they could take a picture of it and post it on the interwebs.


    You don't think it's actually meant to be ridden...do you?
    Quote Originally Posted by ahsposo View Post
    Ski, bike and wish I was gay.

  10. #10
    cab horn
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    Quote Originally Posted by EatMyA** View Post
    Plus the power you put down would all go straight towards propelling you forward, no loss.
    I don't see how that's anymore efficient than a single chainring/cog/chain setup. In fact, seems like it'd be more inefficient than anything else.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  11. #11
    VoodooChile zoste's Avatar
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    I thought it was so you could stop worrying about dish
    Sometimes nothing can be a real cool hand

  12. #12
    Isaias NoRacer's Avatar
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    Maybe it so you can switch between "fixed" and "coaster" without flip-flopping the hub?
    2009 mileage = 14,738 miles; 2010 mileage = 15,234 miles; 2011 mileage = 17,344 miles; 2012 mileage = 11,414 miles; 2013 = 12,169

  13. #13
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by retroroadie View Post
    Funny - it reminds of a concept record attempt bike back in the 80's (possibly a Pinarello) that had the same setup. It was intended to use both sides to get the maximum power during the initial explosive start; after that, the chain was designed to fall off to relieve the bike of weight (I'm not making this stuff up, honest!). As far as I know it never made it past the bike show concept stage.
    No, IIRC it actually worked, but UCI wouldn't allow it in competition so it never went anywhere.

  14. #14
    Junior Member co treker's Avatar
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    What were they smokin' that day?

  15. #15
    Senior Member
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    I assume the left side (nds side for everything else) crank is the captain's crank from a tandem to get the pedal threading correct.

  16. #16
    1 bike 2 many. Butterthebean's Avatar
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    Quote Originally Posted by retroroadie View Post
    after that, the chain was designed to fall off to relieve the bike of weight (I'm not making this stuff up, honest!).
    I've been using this same technique for quite a few years, but unintentionally.

    Last edited by Butterthebean; 03-11-09 at 11:59 AM.
    The internet gives you the opportunity to be an obnoxious jerk. But you are not obligated to do so.

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  17. #17
    Senior Member mkael's Avatar
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    Looks nice. It should go into the alternative subforum. They come up with useful stuff all the time.

    'Advanced double safety chain system' saves your teeth on a bad day

  18. #18
    cycles per second Gonzo Bob's Avatar
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    Obviously because it saves weight since there's no need to use lockrings.

  19. #19
    rebmeM roineS JanMM's Avatar
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    Symmetry...........

  20. #20
    Senior Member CaptCarrot's Avatar
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    i am surpeised no one has mentioned the most obvious (IMHO) answer - redundancy should one chainring/cog or chain fail you could keep going without stopping.
    Not as green as I might be cabbage looking!

  21. #21
    cab horn
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    Quote Originally Posted by CaptCarrot View Post
    i am surpeised no one has mentioned the most obvious (IMHO) answer - redundancy should one chainring/cog or chain fail you could keep going without stopping.
    Yeah except one chainring/cog failing will still bring you to a halt, regardless.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  22. #22
    surly old man jgedwa's Avatar
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    [QUOTE=EatMyA**;8508329] and shimano crank on the right side and a suntour crank on the left.
    [QUOTE]

    Huh?
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  23. #23
    Roadkill byte_speed's Avatar
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    Quote Originally Posted by NoRacer View Post
    Maybe it so you can switch between "fixed" and "coaster" without flip-flopping the hub?
    So one side is fixed & the other coaster?

    And the two pedals rotate independently?

  24. #24
    hello roadfix's Avatar
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    Quote Originally Posted by JanMM View Post
    Symmetry...........
    and balance
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  25. #25
    Senior Member Homebrew01's Avatar
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    Reminds me of the bonehead that came out with an L-shaped crankarm years ago .... wanted to add weight & flexibility ?
    Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike

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