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Large Marge Endomorph 3.7 Muni

Started by SurlyDave · · Last activity · 104 posts · 7,594 views

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rec.sport.unicycling
Published
15 April 2005
Last activity
15 May 2007
Original author
SurlyDave
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104
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  1. I finished this a few hours ago. It needs powdercoat. But, it's
    otherwise ready to go. I only have a 5 or 6 miles on it, and I'm a
    relative novice. So, a report of it's performance, from me, doesn't
    have much value at this point.

    The frame is fillet brazed .049" cromoly tubing and a steerer from a
    wrecked Surly 1x1 fork. The bearing holders are lightened steel shaft
    collars.

    I'm using the same heavy Surly Endomorph tire that George is riding.
    The production 60tpi tires will be up to 660 grams lighter. And, some
    creative machining removes 300+ grams from the Large Marge rim. I'm
    looking forward to riding it with less rotating mass, but I'm happy
    riding it as is. I'm biased, of course.

    +----------------------------------------------------------------+
    | Attachment filename: endo with maguras.jpg |
    |Download attachment: http://www.unicyclist.com/attachment/299575|
    +----------------------------------------------------------------+

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  2. Here's a pic of the frame.

    +----------------------------------------------------------------+
    | Attachment filename: endo frame.jpg |
    |Download attachment: http://www.unicyclist.com/attachment/299578|
    +----------------------------------------------------------------+

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  3. This pic just shows the clearance of the tire in the frame.

    +----------------------------------------------------------------+
    | Attachment filename: clearance.jpg |
    |Download attachment: http://www.unicyclist.com/attachment/299580|
    +----------------------------------------------------------------+

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  4. I continue to be in awe of the girth of that tire. So is Large Marge the
    new nickname?

    --
    The Yang - Unicyclist with Balls

    "I just rolled over my testicle" Tony J

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  5. Wow, that's a beast! Have you had any problems with hitting your legs
    on the crown of the frame?

    Well done.

    Andrew

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  6. The Yang said:

    *I continue to be in awe of the girth of that tire. So is Large Marge
    the new nickname? *

    I'm pretty sure Large Marge is the name of the rim.

    BTW, what size wheel is that? I'm assuming it's a 24" or 26", but it
    looks smaller - probably just an illusion because of the thickness of
    the tyre.

    --
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  7. Yang,

    Large Marge is the trademarked name of our wide rim.

    Andrew,

    I just got back from a Jedi night ride near the Mississippi River. I
    wanted to check out some good dirt trails before they get overrun by
    fairweather hikers, today. It's supposed to be a beautiful day in
    Minneapolis, and it will be hard to navigate around the gawkers on some
    of the narrower trails. Of course, I can almost run right over them,
    now. Just kidding, stupid gawking fair weather hikers.

    I was more concerned about hitting my legs on the Magura brake than on
    the crown. This was my first ride using a brake, so I didn't know what
    to expect. I didn't hit the crown, and I didn't hit the slave cylinders
    of the brake. As for using a brake, I like it. I use it seldomly, but
    I see the merits of having one. It only adds 273 grams to the vehicle,
    and I'll probably use it more when I get more comfortable with the
    modulation.

    I ran 12 psi in the tire. That seemed like a good pressure for the
    combination of road and trails I was on.

    Dave

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  8. Rob,

    It's a 26" rim, but the diameter of the tire measures out to be
    740mm...29".

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  9. Thanks Dave. It's funny, in the photo it looks almost like a 20" trials
    wheel with tiny pedals and saddle! The thickness of the tyre seems to
    confuse the brain into thinking it must be a smaller wheel (well mine
    anyway :p )

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  10. Yo,

    Ain't the 24 inch LG rime due out in June? Any update on that?

    Thanks!

    JL

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  11. They don't even make 24x3.7" tires yet, if they ever will, so it has to
    be 26"

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    loosejello
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  12. Sweet ride!

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    George C. Barnes IV
    GB4 Manufacturing, L.L.C.
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  13. That is a monster. I am curious how it will be for bombing down rocky
    slopes. The shock absortion of the tire should be great, but I wonder
    if rebound will be a problem.

    Scott

    --
    S_Wallis - MUni Motivated

    "I am always doing that which I can not do, in order that I may learn
    how to do it." Pablo Picasso
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  14. will there be production frames to go along with this wheel/tire

    --
    unicyclepa

    www.unicyclepa.com
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    but its all good
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  15. I wonder if the Endomorph will be faster than a 29er for fast XC racing
    on singletrack? The wheel diameter will be very similar. The big fat
    Endomorph will be able to plow over any rocks or roots at full speed.
    The fat tire will also act as a suspension so the rider will be able to
    stay in the saddle more which saves energy and allows you to keep a
    faster cadence. With the right trail conditions the Endomorph could
    possibly be faster.

    --
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    john_childs (att) hotmail (dott) com
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  16. SurlyDave said:

    *Andrew,

    I just got back from a Jedi night ride near the Mississippi River. I
    wanted to check out some good dirt trails before they get overrun by
    fairweather hikers, today. It's supposed to be a beautiful day in
    Minneapolis, and it will be hard to navigate around the gawkers on
    some of the narrower trails. Of course, I can almost run right over
    them, now. Just kidding, stupid gawking fair weather hikers.

    I was more concerned about hitting my legs on the Magura brake than on
    the crown. This was my first ride using a brake, so I didn't know
    what to expect. I didn't hit the crown, and I didn't hit the slave
    cylinders of the brake. As for using a brake, I like it. I use it
    seldomly, but I see the merits of having one. It only adds 273 grams
    to the vehicle, and I'll probably use it more when I get more
    comfortable with the modulation.

    I ran 12 psi in the tire. That seemed like a good pressure for the
    combination of road and trails I was on.

    Dave *


    Thanks for that. I like the look of that braided cross-over cable. I'm
    think I'm going to go all-braided for my muni upgrade. Do you know if
    the outer diameter of it will fit in those little clips you get on some
    bike frames (that you clip the brake cables into)? I'm thinking of
    either running some of them on my new frame or sending the brake cable
    through the frame itself for a portion of its journey up to the lever
    (my framebuilder's idea). It's nice to know that the brake setup is
    only 273g too...don't drink that 273mL drink before a ride and they make
    no difference!

    "Of course, I can almost run right over them, now."
    - Hahaha. You should try toad hunting on it. 🙂

    Andrew

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  17. vivalargo said:

    *Yo,

    Ain't the 24 inch LG rime due out in June? Any update on that?

    Thanks!

    JL *

    60% of the rims, from the original production run, were rejected. The
    factory is having a hard time rolling that fat extrusion into a 24"
    hoop. They had to extrude more rim stock to finish the 400 piece order
    of 24" rims. That's why there has been such a delay. Late May/early
    June delivery is what were shooting for.

    Dave

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  18. unicyclepa said:

    *will there be production frames to go along with this wheel/tire *

    Maybe.

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  19. andrew_carter said:

    *Thanks for that. I like the look of that braided cross-over cable.
    I'm think I'm going to go all-braided for my muni upgrade. Do you
    know if the outer diameter of it will fit in those little clips you
    get on some bike frames (that you clip the brake cables into)? *

    I really don't know. I've never used those clips. Our Surly cable
    housing guides use zip ties to hold the housing in place.

    The o.d. of the braided line is 5.5 - 6 mm. I'm not sure how roomy
    those clips are.

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  20. SurlyDave said:

    *Our Surly cable housing guides use zip ties to hold the housing in
    place. *


    Sounds like that may be my best bet if I can track them down (the
    'housing guides', not the zip ties 🙂).

    Andrew

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