Kris Holm Seatpost issue...

Go back to where you bought it and see if they will replace it under
warranty. It shouldn't do that after a month of riding.

--
shibumi - On A Uni

Jeff
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The KH Freeride has a rail adapter on the seat and uses a regular
bicycle seatpost.

That silver part is what I call the guts. It's the part that clamps to
the rails of the seat.

Most bicycle seatposts press the guts into the seatpost and then use
some sort of adhesive to glue the guts to the seatpost. That works fine
for bikes but is not reliable for unicycles. Unicycles put a lot more
torque and twisting stress on the seatpost and if the guts are just
glued on they can eventually fail.

Yours failed pretty quickly. Seems that might be a warranty issue.
Contact whoever sold you the uni and see if it's covered by a warranty.
Even if it's not covered by a warranty I'm sure Kris will want to know
so he can keep track of what is failing and what needs to be improved.

The real solution is to go with the 'Thomson seatpost'
(http://www.lhthomson.com/seatposts.htm). The Thomson seatpost is
machined from one piece. The guts are not just glued on to the post.
The guts are actually part of the post. It will not fail the way the KH
post failed.

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Mine hasn’t budged. They would have replaced it under warranty if you
didn’t butcher it. At this point you should toss it and order a new
one. Nothing will work like the original.

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JustOneWheel - Every One Should Ride One

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Or the thomson as John said.

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I've broken my KH seatpost, but not on the weld. I broke it between the
weld and the front screws. 🙁

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Bob22b - MCL Tearer :d
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Bob22b said:

*I've broken my KH seatpost, but not on the weld. I broke it between
the weld and the front screws. 🙁 *

That's a different style seatpost than the one Theo broke. Yours is a
standard unicycle style seatpost. The new KH munis use a standard
bicycle style seatpost similar to 'this'
(http://www.unicycle.com/shopping/shopexd.asp?id=276).

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The seat post on the new KH's is the weakest link..........like John
said, go to a Thomson and forget about it. Still go get a replacemnt KH
post under warrenty and sell it on Ebay.

--
zod - Southern Fried mUni

maestro8 said:

*...don't roll out on your unicycle, instead, roll out on your
head...
*

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Yeah, I have a Thompson on my mountain bike which I've had now for close
to four years, and it is awesome. I realize that mountain biking
doesn't put much side-to-side torque on the seat but it's a good post.

I used some JB Weld on the broken post and put a stouter bolt through
the works and have a feeling it will buy me time until I can get to a
bike store and pick up a post.

I realized at the time that drilling the hole could shoot my warrenty to
hell but I also realized that it could take up to two weeks to get a new
one through KH or Unicycle.com. I could not wait that long, as I had
plans with a friend to do some riding and needed a quick fix.

It's amazing just how poor quality the seatpost IS on the 2005 KH
Freeride. It is something I would expect to find on a junky bike from
Wal-Mart. Admittedly, I am a bike guy from way back and a hardware nerd
but that seatpost is a piece of [censored]!

--
Theo
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Theo said:

*It's amazing just how poor quality the seatpost IS on the 2005 KH
Freeride. It is something I would expect to find on a junky bike from
Wal-Mart. Admittedly, I am a bike guy from way back and a hardware
nerd but that seatpost is a piece of [censored]! *

Your KH seatpost was probably assembled incorrectly or made from parts
that were out of spec. That's the only explanation for it failing so
soon. Maybe it was assembled with not enough adhesive or whatever kind
of glue they use. Maybe there was some cutting oil on the parts when
they were glued together. There's lots of ways that it could have been
messed up during assembly.

There have been cases of other brands of similar seatposts failing in
the same way from the abuse of muni use. The adhesive or glue gives way
and the guts get separated from the post. Some of them have been high
quality expensive seatposts. The KH isn't the only brand that's ever
failed in that way.

Do let Kris know that the seatpost failed. There is a contact email
address at 'KrisHolm.com' (http://www.krisholm.com/). He needs to know
what's failing so it can get addressed.

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I did let Kris Holm know the issue.

To be completly fair, I should mention that I am a lean 240 pounds (not
fat) which surely had some ill effect on the lifespan of the seatpost.
I don't do drops higher than 2-3' (skills aren't there yet) but do use a
lot of body weight in my quick turns. I will be picking up a
non-pressed seatpost ASAP.

--
Theo
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I was going to post a new thread but searched first and I think this is
my problem. I don't have a KH seatpost but it's simular. I've had it
for a little over a month now and just a few days ago my seat started
twisting. At first I just thought the seat clamp was loose but after
closely looking at it and twisting it back, I noticed it was twisting
where the seat post and rail adaptor thingy connect (see picture). What
is the best way to fix this or isn't it fixable and I should just get a
better seatpost that is one peice like the Thompson? Any suggestions
would be great. If I had someone weld it, would that work? JB weld
probably wouldn't be strong/durable enough, right?

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--
unicycle6869

Jamey (formaly tuna6869)

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morning, that's as good as they're going to feel all day!"~Frank
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unicycle6869 said:

What is the best way to fix this or isn't it fixable and I should just
get a better seatpost that is one peice like the Thompson? Any
suggestions would be great. If I had someone weld it, would that work?
JB weld probably wouldn't be strong/durable enough, right?

You probably won't be able to make any repair last, and it definately
won't be worth the time needed to fix it. The standard KH rail post
is only $20 - not really worth fussing about if you've used it a lot.

Pick something cheap up at the local bike shop, or snag a Thompson -
the whole thing is a solid piece up to the clamp, and they're not
kidding about it being indestructable. The worst I've managed to do is
snap the bolts.

--
entropy

Shut up and ride.
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I just had the same thing happen with the KH seatpost on my Coker. I
have only had this seat post a short time on my new 36 Nimbus frame. I
was thinking about putting a bolt through it, but after reading this
thread I will see if UDC will replace it.

--
muddycycle
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the only weak part on the KH unis are the posts in my opinion.

--
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aim:kiloornish
email: mornish AT gmail DOT com

Evan said:

Buy my wheel damnit

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I know that the Tompson is the best post out there but $150 for a simple
seat post is a pretty steep price!

Unicorn

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Mornish said:

the only weak part on the KH unis are the posts in my opinion.

yeah but they hella weak yo...

--
Unicaw89

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abbabibble said:

Cody bent his koxx.
he was working it pretty hard.

Dumpweed said:

your to hard on ur toys i think its time for u to take up a new hobby
like watching tv

Unicorn said:

I know that the Tompson is the best post out there but $150 for a simple
seat post is a pretty steep price!

Unicorn

You must be looking at the thomson masterpiece post, that one is very
expensive. Look for the thomson elite, its around $70 usually and you
can get them for much less on ebay.

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They should have a warning when you order a KH unicycle with a rail
adapter haha, I don't think that your post was assembled incorrectly
because there are many more people with this problem, I had the problem
myself and like you I drove a bolt through it but the long term
solution is getting a CrMo seatpost or something like the Thompson even
though it's -expensive-!

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My KH did this too. Warranty replacement one has been fine and dandy
though.

I guess the seatpost is low quality, because the cost of the KH parts
is so much less than the cost of posh bike parts. I mean you can buy
sets of road-bike cranks that cost more than the entire KH unicycle.

Joe

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