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  1. #1
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    Is there such a thing as a bicycle steered and powered only using the legs?

    Is there such a thing as a bicycle steered and powered only using the legs?

  2. #2
    Senior Member Looigi's Avatar
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    You ever ride hands off? That's it.

  3. #3
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    I can do that, I was more curious more for cases where you could do it for when you want to use your hands for a couple of minutes. Like for instance, eating a snack causally rather then munching it down as quickly as possible.

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    CRIKEY!!!!!!! Cyclaholic's Avatar
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    There sure is, meet the python

    There are 10 types of people in the world - the ones that can count in base 2, the ones that can't count in base 2, and the ones that didn't expect this to be in base 3.

  5. #5
    Senior Member CNY James's Avatar
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  6. #6
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    CNY - that's a UNIcycle, not a BIcycle.
    Other than that, nice pic.
    -----------------------------------------
    While others have labelled me antisocial at various times, it's actually not true. I just don't like people.

  7. #7
    Senior Member shouldberiding's Avatar
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    Quote Originally Posted by stoddcrew View Post
    I can do that, I was more curious more for cases where you could do it for when you want to use your hands for a couple of minutes. Like for instance, eating a snack causally rather then munching it down as quickly as possible.
    Get better at riding with no hands.

    Smooth out your pedal stroke, hit a good cadence, and you can do it for miles.

  8. #8
    Senior Member CNY James's Avatar
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    Quote Originally Posted by drmweaver2 View Post
    CNY - that's a UNIcycle, not a BIcycle.
    Other than that, nice pic.
    this i know but i just couldn't resist the urge to be a smartass

  9. #9
    Insane Bicycle Mechanic Jeff Wills's Avatar
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    Quote Originally Posted by stoddcrew View Post
    Is there such a thing as a bicycle steered and powered only using the legs?
    Cycoholic pointed you at the Python recumbent- it's a member of the class known as "moving bottom bracket, front wheel drive" bikes. Take a look at Flevo and Cruzbike recumbents if you're truly interested.

    Some people can ride them, some people can't. My friend Jane has a hand-and-foot powered recumbent built on these lines- she says it's impossible to ride without practice. Theftproof: http://good-times.webshots.com/video...00039462xYxYMI
    Jeff Wills

    All my bikes.

  10. #10
    Powerful-Ugly Creature Greyryder's Avatar
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    Quote Originally Posted by Cyclaholic View Post
    There sure is, meet the python

    *pic-snip*
    I had never heard of such a creature, before. But it sure looks cool as hell.
    Quote Originally Posted by Jack Burton
    When some wild eyed eight foot tall maniac grabs you by the throat and taps the back of your favorite head head against the barroom wall, and he looks crooked in the eye, and he ask you if ya paid your dues, you just stare that big sucker right back in the eye, and you remember what ol' Jack Burton always says at a time like that: "Have ya paid your dues, Jack?" "Yessir, the check is in the mail."

  11. #11
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    Quote Originally Posted by stoddcrew View Post
    I can do that, I was more curious more for cases where you could do it for when you want to use your hands for a couple of minutes. Like for instance, eating a snack causally rather then munching it down as quickly as possible.
    You are looking for a touring bike. Try a bike a significant bottom bracket drop, steep head tube angle, long chain stays and oversize wheelbase. On such a bike you can hit potholes while eating a PBJ sandwich and not miss a beat.

  12. #12
    Senior Member Monster Pete's Avatar
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    Once you get used to the pedal-steer effect, moving bottom bracket recumbents are supposed to be steerable with the legs only. Since the bottom bracket is out in front of the head tube, it can be moved left and right like a tiller.

  13. #13
    CRIKEY!!!!!!! Cyclaholic's Avatar
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    Quote Originally Posted by Greyryder View Post
    I had never heard of such a creature, before. But it sure looks cool as hell.
    Yeah, that was my reaction too.

    As an engineer (professional tinkerer according to Mrs. cyclaholic ) it's on my list of future DIY projects.... I could live 5 lifetimes and still not get through that list. LOL.
    There are 10 types of people in the world - the ones that can count in base 2, the ones that can't count in base 2, and the ones that didn't expect this to be in base 3.

  14. #14
    Insane Bicycle Mechanic Jeff Wills's Avatar
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    Quote Originally Posted by Cyclaholic View Post
    Yeah, that was my reaction too.

    As an engineer (professional tinkerer according to Mrs. cyclaholic ) it's on my list of future DIY projects.... I could live 5 lifetimes and still not get through that list. LOL.
    As a semi-professional sorta-retired bike mechanic I gotta say: you're way ahead of me!

    Tom Traylor has an excellent set of plans for DIY FWD moving-bottom-bracket recumbents. Google him.
    Jeff Wills

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  15. #15
    Administrator CbadRider's Avatar
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    Quote Originally Posted by stoddcrew View Post
    I can do that, I was more curious more for cases where you could do it for when you want to use your hands for a couple of minutes. Like for instance, eating a snack causally rather then munching it down as quickly as possible.
    There was a YouTube video posted here a while ago featuring a girl who did the following while riding her bike to work: poured a bowl of cereal, poured milk (she took the food out of her backpack), ate the cereal with a spoon, put the dishes away in the backpack, then pulled out a newspaper and read it until she reached her destination. Everything done with no hands on the bike once she started pedaling.
    Quote Originally Posted by toddles View Post
    So Tom only hires people that are nutty? Is part of the requirement to be a moderator on this site is that you have to be nuts??
    Forum Guidelines *click here*

  16. #16
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    The Python is an old design that does not have positive stability (due to the steering axis geometry, it is not stable at high speeds). It was never produced by any company and sold commercially, it has only ever been a home-built design.

    It was originally intended for touring, which is by nature low-speed riding (~15 mph). For that it works well and many people have rode them many miles. They tend to wobble and crash at higher speeds though, no matter how careful the rider is. Pythons taken above their safe speeds tend to suddenly jack-knife.

    ------

    Another one (produced commercially) is the Cruzbike recumbents. Most developed is the Silvio model:
    http://www.cruzbike.com/silvio.html

    The Silvio does not have any instability issues at any speed, and owners say you can ride it no-handed for long periods (-as long as you don't need to brake or change gears-) but the steering wanders left-and-right somewhat as you pedal.

    I don't own one, but the Cruzbikes are (IMO) a really neat piece of work.
    Cruzbike began as a conversion kit for turning a full-suspended cheap mountain bike into a recumbent, and over two major redesigns have evolved into something very specialized and refined. If you study the photos, you will see that there are a few features on the Silvio that you won't find on most other bikes, or even most other recumbents.

    -------

    There are also a couple trike designs that can be used independently by people with no arms at all. Of the couple I remember, one is a lean-steer delta and the other is a Cruzbike-style delta. Both use IGH coaster-brake hubs and have a lever near the pedals for changing gears.

  17. #17
    Packfodding 3 caloso's Avatar
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    If you need a recumbent to ride no-handed, don't go to Europe.
    Cyclists of the world, unite! You have nothing to lube but your chains!

  18. #18
    Senior Member
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    Quote Originally Posted by caloso View Post
    [mg]http://static.flickr.com/132/322030292_73dcefc07f_o.jpg[/img]

    img]http://www.sixdaybicyclerace.com/images/Audy_News.jpg[/img]

    If you need a recumbent to ride no-handed, don't go to Europe.
    These photos may be bad for your health. By that I mean, I'm tempted to try something similar next time I'm on my bike.

  19. #19
    Senior Member BlazingPedals's Avatar
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    As a kid, I could ride my single speed down the road, up a driveway apron, along the sidewalk, down the next driveway apron, across the street and up onto the sidewalk on the other side of the street...

    Modern geometry makes this tough because of the currently-fashionable steep steering angles, even on hybrids. Maybe mountain bikes are a bit better in that respect?

    I tried a Cruzbike. Maybe practiced riders can do it hands-off, but beginners need wide bars for extra leverage. Pedal steer is horrendous, and at least at first it's almost uncontrollable.

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