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Eightpins teases all-new dropper seatpost design with Syntace, Liteville

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syntace-liteville-eightpins-integrated-seatpost-teaser

As dropper seatposts have evolved, one issue that’s been consistent is binding when a seatpost collar is over tightened. Many modern posts have tried to address this with more robust outer cylinders or tricky internals, but the fact remains, if you over tighten your collar, things may not work as well as they should. Eightpins, in an apparent collaboration with Syntace, will be introducing a completely different take on it at Eurobike. Judging by the fuzzed out photo of it, it could involve frame integration, or possible an expanding system that locks the post into place by wedging against the inside of the seat tube. We’ll be there to cover it, but take some guesses in the comments…

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27 Comments
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Dave
Dave
7 years ago

It’s a lock, they’re using Elmer’s glue.

neil
neil
7 years ago

Superglue… just in a very expensive CNC machined bottle!

therealgreenplease
7 years ago

Um…. what bike is that? That’s a very unusual linkage design.

Marin
Marin
7 years ago

It actually says in the title. It’s Liteville 301.
In any case, are collars really such an isuse? With some carbon paste you barely need to tighten the post far below recommeded 5-6Nm max torque.

Ol'shel'
Ol'shel'
7 years ago
Reply to  Marin

It’s an issue if they think they can convince you to spend more money to get the latest and greatest feature. Yes, you’re current bike is no good because it doesn’t have the right axle spacing or seatpost clamp style.

Groghunter
Groghunter
7 years ago

hmmm, maybe this is why the new Enduro has such a big seat tube? an expanding collet would require more space in the seattube…

Chader
Chader
7 years ago

I suspect a collet style system, like used in machining tooling.

It gives more uniform clamping force.

norcom
norcom
7 years ago

Lets hope they make it a press fit seat post. I don’t know about the rest of you but I’ve been asking for more different standards.

Von Kruiser
Von Kruiser
7 years ago

It’s a dual clamp. One clamp grabs the frame, the other grabs the post and evenly distributes the clamp force to a larger area… or Elmer’s glue.

Captain
Captain
7 years ago

Didn’t they already make a fix for this?
A bolt-on collar and a torque key?
I should start a Kickstarter with those bundled, add an instructions booklet, and call it The Idiots Guide to Seatposts

Tdr
Tdr
7 years ago

Maby locring srewed on post witch sits in socket on top of seat tube, with side flatened interface on lower part of post. Personalny I would be afraid of screw wear from dirt and seatpost work (if screw was no long enaugh).

Echo
Echo
7 years ago

Are we finally going to see oversized seat tubes with integrated droppers? Makes sense to give more space to (in theory) improve reliability.

Von Kruiser
Von Kruiser
7 years ago

Wait, the dropper actually screws into the top of the ST of the frame. No need for a clamp since it is integrated into the frame. Ha, that’s it…. or Elmer’s glue.

potbellyjoe
potbellyjoe
7 years ago

The seat tube will be the outer and the seat post will just drop into it.

http://mombat.org/MOMBAT/BikeHistoryPages/Images/HiteRite%20AD%201985%205M.jpg

chadquest
chadquest
7 years ago

Quill stem style.

Fog
Fog
7 years ago

Literally building the outer part of the post into the frame would bring a lot of benefits; bigger top part of post so could be lighter, seals would keep water out of the entire frame, and everything else could be bigger making it easier to make it stronger and more durable…. however would need more stroke and some end stops to cover all rider heights/tastes and if something went wrong you’d be without the bike while it was being fixed rather than just sticking another post in.

Groghunter
Groghunter
7 years ago
Reply to  Fog

I really hope you’re wrong. If frame manufacturers can’t manage to make a press fit BB shell to spec, I shudder to think what problems you’d have with them making the sealed tube for outer portion of a dropper.

the biz
the biz
7 years ago
Reply to  Groghunter

Headsets have been pressfit for how long now? If you think pressfit BBs don’t work in 2016, you are misinformed.

Fog
Fog
7 years ago

It definitely looks like they just built it in. Post is much larger diameter all the way up.

captain derp
captain derp
7 years ago

BOOST seatpost interface. you heard it here first!

Flatbiller
Flatbiller
7 years ago

Will the eight people worldwide who experience this issue please raise your hand. (In related news, these eight people do NOT own a torque wrench.)

Ol'shel'
Ol'shel'
7 years ago

It would be nice to have a frame/post interface that doesn’t allow moisture in.

Rider X
7 years ago

Guess: Invert the suspension mechanism, so that you clamp the stanchion rather than the body with the internals.

Hans Kunenborg
7 years ago

its a tube between the seatpost and the frametube that clamps the seatpost when its pushed down. To releave it just pull the post up. Hold the betweentube a bit up and adjust the height.

TimB
TimB
7 years ago

Probably an external tapered collar with expanding shims that’s threaded to the outer shaft of the dropper. Twist a collar at the top of the fixed part of the post and it engages the expanding shims to grip the inside of the seat tube.

mieming trail
mieming trail
7 years ago

just have a look at their homepage eightpins.at

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