Stuck seat

ntappin said:

try loosening the seat post clamp more (or even take it all the way off
if you can put it back on after

I've done that too but I might try the hammer later if there's no other
options

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carsonpalooza

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-Dave aka fcwegnm0b
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I don't know how they have solved the crown on the qu-ax frame..

When i got my onza muni last spring, i had the same problem..
When i checked the seat-tube for errors i found out the crown-welding
had made a little bump inwards on the seat tube..

Feel inside the seat tube with your index finger all the way around for
things like this.
You could just chop the seatpost a bit more and the problem is solved,
you won't need that much seatpost-seattube interfae for it to be ridig
as hell 🙂

Happy tinkering!

--
lleberg

I <3 my unicycle!
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The Qu-Ax seat post/frame tube is a BEAST. The only way I got it in was
to squirt WD40 all over the seatpost. Then it slid down perfectly.

--
forrestunifreak

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I took off the wheel and the seat to take a look at the frame and found
two holes which is around the area where it is impossible to push the
seat further. I tried using some WD-40 and had the same results. I'm
calling udc tomorrow for some more info.

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--
carsonpalooza

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That site is making me drool.
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I have the QU-AX MUni, and I had to cut the seatpost down about 5" then
i just twisted and pushed it down to the right hight. it worked pretty
well.

--
smcmorrow
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carsonpalooza said:

I took off the wheel and the seat to take a look at the frame and found
two holes which is around the area where it is impossible to push the
seat further. I tried using some WD-40 and had the same results. I'm
calling udc tomorrow for some more info.

Those holes are not finished well and probably a tiny edge sticks into
the seat tube beyond its intended diameter. Maybe if you can reach them
with sand paper or a file you could rectify that, as a "poor man's"
solution. A proper remedy would be to run a reamer of the correct
diameter in the seat tube, something the manufacturer should have done.
Your LBS should be able to do this for you.

--
Klaas Bil
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Klaas Bil said:

Those holes are not finished well and probably a tiny edge sticks into
the seat tube beyond its intended diameter. Maybe if you can reach them
with sand paper or a file you could rectify that, as a "poor man's"
solution. A proper remedy would be to run a reamer of the correct
diameter in the seat tube, something the manufacturer should have done.
Your LBS should be able to do this for you.

This is one possibility, but another is just a bad combination of
"standard variances" between your seat tube and your seat post. This
stuff isn't made to the tightest tolerances in the world, so
occasionally a thinner than average seat tube and a thicker than
average seat post will combine to make a setup that won't come
together.

This happened to me when I bought a new Primo Rod for my Hunter frame.
Didn't quite fit. The successful solution recommended by
John_Childs--I'm sure just so he could laugh while I sweated for half
an hour--was to sandpaper the heck out of the seat post with the
coarsest paper I had. Took a while, wore my arm out, but in the end
allowed me to grease up the post and fit it in.

You can probably feel with your finger as to whether those holes have a
tiny edge sticking into the seat tube. Try Klaas's method, but also be
prepared to do some sanding on the seat post.

--
tomblackwood

Tailgate at your own risk...
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carsonpalooza said:

I've done that too but I might try the hammer later if there's no other
options

"The three rules of hammering seatposts:

1. Never install a seatpost with a hammer.

2. Never, never install a seatpost with a hammer.

3. Never, never, EVER install a seatpost with a hammer!"

http://www.sheldonbrown.com/stuck-seatposts.html

j.

--
juergen_brauckmann
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tomblackwood said:

This is one possibility, but another is just a bad combination of
"standard variances" between your seat tube and your seat post. This
stuff isn't made to the tightest tolerances in the world, so
occasionally a thinner than average seat tube and a thicker than
average seat post will combine to make a setup that won't come
together.

I tried putting in my other KH seat and had the same results so I don't
think its that the seat post is a bit too think. I'm about to go try
so slightly sand paper down the hole.

--
carsonpalooza

I just wear bike shorts...* the tight kind*
That site is making me drool.
-Dave aka fcwegnm0b
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Hey, Check and see is the neck of the frame is straight.
If it is use a round fine file to smooth out the sorry craftsmanship.
Good Luck🙂

--
FatBoy-Dave

http://www.municycle.com/

Dave
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As i told you before..

Many seattubes are tighter at the bottom wich makes the seatpost unable
to be ushed all the way trough.

Just cut the seatpost a bit more and you'ld be FINE.

Try to put the seatpost in the seattube from the other way, and see for
yourself if it fits at all 🙂

--
lleberg

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I ended up just cutting the seat post a few inches shorter and now it
works just fine. I tried pushing the seat the other way through but
because of the way the welding was done you can because over "over
flow." thanks for all of the help

-Carson

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carsonpalooza

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the problem might be the pain on the seatpost. try grinding some of the
paint off so the post is a little thinner. i did that to make it easier
to get my seatpost on and off on my begginer unicycle.
hope that helps🙂

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manon1wheel

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tomblackwood said:

be prepared to do some sanding on the seat post.

Well, Carson's problem has been solved by now. But just for the record,
if a seat post is chromed, I'd be wary to sand it. If you remove the
chrome layer completely (if only locally), you expose blank steel /
iron which might get to rust and result in a stuck seat post.
Conversely, reaming the seat tube is not much of a problem since the
inside is usually blank metal anyway.

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Klaas Bil
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