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homemade FS frame

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01 / Original posthomemade FS frameunisk8r · 19 May 2004 02 / This pagePosts 1–11Page 1 of 1 · chronological order 03 / Latest replyPost #11john_childs · 20 May 2004

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Original section
rec.sport.unicycling
Published
19 May 2004
Last activity
20 May 2004
Original author
unisk8r
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11
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Topics
DIY vs bike shop repairs

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  1. Original post
    unisk8r
    Archived post
    #1

    OK, I was getting tired of my heavy 20" Torker LX for freestyle, so I
    took an aluminum mountain bike crown, sawed it apart and milled down the
    width, found a 1 1/8" aluminum steerer tube, and sawed apart an old
    chrome unistar frame for the legs (to keep the bearing holders, which I
    wasn't about to make from scratch...yet). Then I had a friend heliarc
    the crown halves and seat tube together, and I bolted in and glued the
    steel legs. Voila! A new, lightweight, custom freestyle frame! I was
    also able to cut off a standard 7/8" seatpost quite a bit, saving even
    more weight. I used the same seatpost clamp from the Torker.
    $5. for the crown and tube at my local recycled bike shop, and $20. for
    the chrome donor frame. My and my welder friend's time, though
    priceless, shall not count due to the fun of it.

    Here are a couple pics of my handiwork:

    +----------------------------------------------------------------+
    | Attachment filename: fs1.frontcrown1.jpg |
    |Download attachment: http://www.unicyclist.com/attachment/210781|
    +----------------------------------------------------------------+

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  2. unisk8r
    Archived post
    #2

    Here's from the back:

    +----------------------------------------------------------------+
    | Attachment filename: fs1.backupper.jpg |
    |Download attachment: http://www.unicyclist.com/attachment/210783|
    +----------------------------------------------------------------+

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  3. tennisgh22
    Archived post
    #3

    looks awesome! its probably just the picture playing tricks on my mind,
    but how close is the frame to touching the wheel? anyways, thats one
    sexy frame you have there.

    -grant

    --
    tennisgh22

    The problem with America is stupidity. I'm not saying there should be a
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  4. john_childs
    Archived post
    #4

    Sweet! You're having too much fun making and modifying your own toys.

    We need a picture showing the whole cycle in all of its glory.

    Have you seen the 'Pichlerrad' (http://www.pichlerrad.de/de01.htm)
    unicycles? He makes a model called the 'Solo'
    (http://www.pichlerrad.de/solo_1.htm) that has a similar style of crown.
    I think the Solo is a cool design.

    --
    john_childs - Guinness Mojo

    john_childs (at) hotmail (dot) com
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  5. elmer
    Archived post
    #5

    That is one very cool looking frame.

    --
    elmer - uniimpaired

    "At 40 life begins...to show."
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  6. daino149
    Archived post
    #6

    Wow, that's pretty sweet! So how much weight did you save? Can you
    post a pic of the bearing holders?

    Daniel

    --
    daino149 - How's it going, Texas?

    Check out my pics: www.unicyclist.com/gallery/daino
    Sig count: 2
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  7. andrew_carter
    Archived post
    #7

    That's beautiful, and it looks like it would be just the right size and
    shape for freestyle. Great work!

    Andrew

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  8. TonyMelton
    Archived post
    #8
    john_childs said:

    *
    Have you seen the 'Pichlerrad' (http://www.pichlerrad.de/de01.htm)
    unicycles? *

    Thanks for that link, John. I now know that my Picherrad is a "Semipro"
    model. I got the uni second hand and knew nothing about it except that
    it was a Picherrad and that its previous owner bought it in Germany. Its
    cool to find out stuff about your unis!

    Check out the walking machine on the "Spezials" page - wery nice!

    --
    TonyMelton - Up, up and awaaaay!

    See some photos of the first 'NZ MUni Weekend'
    (http://gallery.unicyclist.com/NZ-MUni-Weekend-2004)
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  9. johnfoss
    Archived post
    #9

    It looks very nice. And it appears the crown can be separated from the
    fork legs, like a Pichlerrad? This means you have a *modular* frame. You
    can swap out wheels and fork legs to fit different sized wheels. That's
    one of the cool things about the Pichler.

    --
    johnfoss - Walkin' on the edge

    John Foss, the Uni-Cyclone
    "jfoss" at "unicycling.com"
    www.unicycling.com

    "We choose to go to the Moon in this decade and do the other things, not
    because they are easy, but because they are hard." -- John F. Kennedy,
    1961
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  10. unisk8r
    Archived post
    #10

    There is indeed 1/8" clearance between the tire and the bottom of the
    crown. However, on this one the legs are epoxied and clamped into the
    crown. I actually didn't consider modularity of the legs for a
    different size wheel; rather, I only wanted to make the crown as small
    as possible for the hookworm tire.

    The bearing holders are just standard Torker/Sun type. I suppose if
    anyone bothered to machine some aluminum ones for a standard 40mm
    bearing, with a round plug at the top of the bearing holder to fit into
    a 7/8" or 1" tube, we could venture into carbon fiber tubes...

    This one was fairly easy, to get parts from the used bike shop, and I
    didn't use a jig for assembly, just eyeballed it! It rides very true.

    The crown/seatube/shorter seatpost combo probably saved at least a full
    pound over the Torker frame.

    --
    unisk8r - All this for just cross-training?
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  11. john_childs
    Archived post
    #11
    unisk8r said:

    *There is indeed 1/8" clearance between the tire and the bottom of the
    crown. However, on this one the legs are epoxied and clamped into the
    crown. I actually didn't consider modularity of the legs for a
    different size wheel; rather, I only wanted to make the crown as small
    as possible for the hookworm tire. *

    The Pichlerrad Solo has lollipop style bearing holders rather than the
    main cap style. To take the unicycle apart to change the tire you have
    to remove the crown from the fork legs.

    The Pichlerrad Solo is an interesting design. But the design does have
    it's faults. It can be a bit tricky getting the legs all square and
    lined up when putting it back together. It's still a cool design and
    every time I see one I go "Ohhhh, I want one".

    --
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    john_childs (at) hotmail (dot) com
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