kh frame repaired

Looks like industrial strength tic welding to me, Hans. I figure if you
get another six months out of that frame you´re doing fine since IME,
hard core muni (2-3 days a week) eats all aluminum frames in basically
16-24 months.

JL

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vivalargo
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Hans, all I can say is that your kh has been through a lot.

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unidennis
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ugly, but I guess it's better than buying a new frame. It would suck to
hit your knees on the pointy things sticking out of the weld.

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Quoted message said:

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muniman52 said:

Got the broken frame repaired
Took it out for a ride, works well

Now you just need to rip off those ugly udc stickers! 😄 But
wait....maybe they'll help hold the frame together!

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terrybigwheel

Impotence: Nature's Way Of Saying "No Hard Feelings".

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Ewwww plz kill me or take that frame away

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maxisback said:

Ewwww plz kill me or take that frame away

To some people a frame is something which enables them to ride.

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Looks beefy. :P

I'm actually suprised that more frames, especially Muni ones, don't
come stock with small braces like that. That seems to be the weak
point in every frame, and for things like trials and Muni you never put
your foot there, so you can spare room for a brace. Be sure to tell us
how it holds up!

--
Spudman

• • • • • • • • • • • • • • • • • • • • • • • • • • • •
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Spudman said:

Looks beefy. :P

I'm actually suprised that more frames, especially Muni ones, don't
come stock with small braces like that. That seems to be the weak
point in every frame, and for things like trials and Muni you never put
your foot there, so you can spare room for a brace. Be sure to tell us
how it holds up!

The rider's weight is also a key factor in frame, hub, and crank
longevity. I would logically conclude that a rider weighing 140lbs will
exert far less stress on a frame, etc, vs a 200lb rider. This also
takes into consideration that both riders are subjecting their Munis to
comparable terrain and riding styles, and also doing similar drops and
so on.🙂

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terrybigwheel

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Uni is just a cycle I'm going through. 😎

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i was just thinking about how strong kh frames really are the other day

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stuckinwheeliemode
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Now go get it dirty again. That frame is far too clean for a
respectable muni. 😄

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john_childs said:

Now go get it dirty again. That frame is far too clean for a
respectable muni. 😄

Yeah, toss it in a mud puddle, swish it around, then roll it around on
some manuer, then maybe it will be "muni-worthy!"😄

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terrybigwheel

Impotence: Nature's Way Of Saying "No Hard Feelings".

Uni is just a cycle I'm going through. 😎

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terrybigwheel said:

Yeah, toss it in a mud puddle, swish it around, then roll it around on
some manuer, then maybe it will be "muni-worthy!"😄

Intentionally rolling the muni in some manure is a little more hardcore
than I'm willing to go, although I do occasionally end up rolling
through the occasional horse apple or worse the occasional abandoned
dog [censored]. Finding a mud puddle in southern California this time of
year is also going to be tough. I'm willing to let it go at just not
washing the muni and letting it accumulate layers of dusty dirt.

-Team Dirty Muni

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lol, be sure to clean rust off, I think rust is bad for unis.

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mornish

Quoted message said:

<>UNICYCLING FOR MYSLELF TOO<><

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john_childs said:

Now go get it dirty again. That frame is far too clean for a
respectable muni. 😄

i agree.

terrybigwheel said:

Yeah, toss it in a mud puddle, swish it around, then roll it around on
some manuer, then maybe it will be "muni-worthy!"😄

I also agree. Except for the bit about the manure. that's just
gross.🙄

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Spudman said:

I'm actually suprised that more frames, especially Muni ones, don't come
stock with small braces like that. That seems to be the weak point in
every frame,

Yes, I really don't understand why frames are build like this (with the
tube for the saddle just put on top). I have no background in
engineering or welding, so what I think might be completely stupid
though. But a construction like 'this' (http://tinyurl.com/h3vqs) seems
to be much better.

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Niko said:

Yes, I really don't understand why frames are build like this (with the
tube for the saddle just put on top). I have no background in
engineering or welding, so what I think might be completely stupid
though. But a construction like 'this' (http://tinyurl.com/h3vqs) seems
to be much better.

Nice! I didn't know Koxx One was making such a freestyle frame. A new
signature model.

It actually looks a lot like a DM Ringmaster Advanced in the way the
frame is constructed. Similar in the way the tubing fits together and
is welded.

DM is no longer in business making unicycles so it is really nice to
have Koxx One making (what I assume to be) similar quality freestyle
frames.

Anyways, design goals and materials are going to play a big role in
what makes for a practical frame design. An aluminum frame aiming for
low weight isn't going to do well with the DM style or new Koxx One
Signature style frame. Too many welds. It would be heavier.

There are other ways to improve the strength of the aluminum frames.
Tubing that is thicker (greater wall thickness) where the welds are is
one way. Better tolerances in how the tubes are cut and how they fit
together before welding. Choice of alloy for the frame tubes. A
change in heat treatment. And other changes can be done to improve
strength, but it will be at the expense of weight and/or cost. The
engineering challenge is finding the right balance between low weight
and high strength and cost. Don't want to overbuild or underbuild.

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oh man... that frame looks hot 😎 both the kh one and the new
signature koxx one frame

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UniPsychoLiam

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OK you all, thanks for all the comments
I'll be out gettting it as filthy as possible asap, so it can look
respectable when riding the trails

I do think the frames tend to break from the amount of riding that is
done on it (and the weight of the rider, I am right at 200)
The metal can only take so much flexing then it get metal fatigue and
gives out

I had my wilder frame fixed 4 times before I gave up on it

Have a good weekend
Hans

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I welded that frame back up. A few things I noticed in the proccess...

It welded nothing like 7000 series aluminum, and didn't grind like
anything special. 7000 series aluminum is hell to file, cut, and weld
compared to run of the mill 6061, etc. I would bet good money that
whomever makes this frame in Taiwan has decided to cut costs with
alower grade alloy (note, that means lower welding costs, as well).
Still, 7000 series al wouldn't really improve things, since it fatigues
faster than 6061.

The frame did not break at the weld, it broke ABOVE the weld. This
means that Koxx freestyle design is useless, since the welds are more
than adaquate. The aluminum of the seattube itself is the weak point.
If the welds break on any frame, that is grounds to claim a
manufacturing defect and ask for a warrantied replacement, IMO. A
proper weld in a tubular frame context is almost always stronger than
the parent metal.

Welding destroys the heat treatment of the parent metal, which is
critical in aluminum. I am curious as to how long this thing will
last.

The points ground into the gussets are for 1-f riding, etc. I doubt
they will grab your knees. No big deal to file them off if they do,
though.

Good luck with the frame Hans. Glad I could help.

Max, people like you are what make the internet suck.

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