seat post clamp

irvinegr said:

Which is better to have on a street uni, a alen one or a quick release
one??

Allen, definitaly. A quick release just doesn't cut it, unless you have
a really good one. And you probably arn't going to move your seat a lot
anyway. You shouldn't anyway.

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Keep in mind that a QR seatpost clamp has a lever that hangs out. No
matter how well it is designed, it will find a way to snag your
clothing / fingers / etc.

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i suggest a primo double bolt clamp. rock solid.

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some onje should make like a ten bolt seat clamp. id buy it. not
cause it made sense but thad just be pimp

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I like quick releases wayyy more. I am always changing my seat hight so
it is much easier to pull the lever than get out an allen wrench and do
it that way. It doesn't hold it as well so if you land hard your seat
can get tweaked but its not hard to fix. If you are doing muni or
something like that then get a bolt. If you want something that will
hold it well get an allen bolt, if you want it easily adjustable get a
quick release.

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chosen said:

wish i could be in a signature...*sigh*

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On a related note. . .

When I started learning a month ago, I cut off some of the seat tube so
that I could lower the seat. I quickly learned that I'd lowered it too
much, so I raised it back up some. As I improved little by little, I
raised the seat up more a quarter-inch or a half-inch or so at a time.
I've got a quick-release clamp.

Now it's back up to when I got it, maybe a little higher. And there
are lots of dimples in it at the different heights, because many UPDs
have knocked it off-center, so I've cranked the quick-release pretty
tight. Questions:

1. Is the integrity of the seatpost compromised by the little
dimples?
2. How much of the seatpost should be in the frame for it to be safe
(I know there was a "don't raise the seat up past this point" line, but
now the seatpost is a few inches shorter than when it was new)?
3. Is there a seatpost you can buy that won't get pinched/dimpled by
the quick-release?

Rich

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RichVoice

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i had a quick release on my old 20" and it drove me up the wall, because
if i wanted to ride real quickly it found a way to catch my shorts of
pants!!

In the middle of hopping up something sif, i slipped back and the quick
release clamp caught behind my knee cap and gauged a hole, hurt for
ages and i now have a scar!!

I now have a alen key clamp and works devine, doesnt get in the way at
all, and holds the post better!!

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trials2k

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I can't say anything good about quick release. They just arent much good
under high stresses, and the handle sucks. I once gouged my leg on one
after a bad seatwrap on someone else's uni.

Double bolt clamps are the only ones I use now. You can tighten one
bolt against the other to really get it tight. Plus, how often do you
really adjust seat height? Once you get it right your only going to
adjust it once in a while. Even then it only takes an allen key.

Rob

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Arking said:

I can't say anything good about quick release. They just arent much good
under high stresses, and the handle sucks. I once gouged my leg on one
after a bad seatwrap on someone else's uni.

If you get a good quick release clamp, they're low profile, and clamp
well, so don't usually have either of these problems. The really
massive ones that sometimes come with unicycles aren't very good, but a
good QR clamps pretty much the same as a bolted clamp, and really
doesn't get in the way.

QRs are useful if you take your unicycle apart much, like for going on
public transport or putting it in a car, or if you let other people
have a go often.

The biggest downside of quick releases is that other people will have a
go on your unicycle, adjust the height without telling you and not
change it back. It's really annoying, cos you get on and suddenly you
can't ride any more and you have to get off and change the height
back.

Joe

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Fair enough. I do find they start to losen up and twist with serious
seat out hopping or unispins etc which really stresses that join if the
clamp isnt tight.

That said i suppose there's no reason a good quick release couldn't
work. They're certainley fine for comuting.

For street riding I'd still recommend double bolt, since your seat
twisting in the middle of a big move can be not only annoying but
downright dangerous.

Rob

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If you want the best of both worlds drop $25 on a salsa fliplock.
Awesome quick release clamp. Your post will not move, and it is low
profile. Plus you have the bonus of adjusting your seat on the fly.

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Arking said:

For street riding I'd still recommend double bolt, since your seat
twisting in the middle of a big move can be not only annoying but
downright dangerous.

That's a good point. I've had a frame failure leading to seat twist
during a muni downhill and that wasn't a healthy thing to happen then,
and I hate to think what would have happened. I think a decent clamp
should be okay, but I don't do big seat out tricks or uni-spins.

Joe

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