The rails of the SpeedNeedle saddles are 8x 10 mm oval shaped.
Please sum up your working combinations.

Seatposts compatible with TUNE Speedneedle (in alphabetical order):

• ABR composite
• Airborne Flyte
• AX-Lightness Europa
• Control Tech RP Carbon Comp
• Colnago seat post
• Easton EC70
• Easton EC90 zero
• Extralite (all posts)
• FRM carbon seatpost
• Heylight HS II (with special clamp only)
• Hilset Titanium
• Kore Lite
• KCNC Ti Pro Lite
• KCNC SC Pro Lite
• LP Composites posts
• Maxm
• New Ultimate
• Pazzaz carbon
• Ritchey (all models, Carbon & Al)
• Schmolke Carbon SL and TLO
• Shimano XTR
• Syncros micro-adjust
• Thomson seatpost
• Trigon Carbon
• Truvativ team
• Tune Starkes Stück
• Woodman Carbo LT

Seatposts NOT compatible with TUNE Speedneedle:

• Bontrager Race XXX Lite
• Easton CT2
• M2Racer (could work with a bit of filing)
• Moots Straight Laced and Laid Back
• Race Face XY
• Shannon (only after modification)
• USE Alien (without separate oversized clamps & further modifications)
• USE Alien with OS head (only after modification)
• X-Lite Metal Matrix (works after some Dremel work)
• Scott

If your post is not listed above and you want to find out if it's compatible, post it in this thread.
SpeedNeedle users who are running posts other than the above are encouraged to contribute their seatpost compatibility experiences, either positive or negative.
The listings above will be updated with your input.

_________________
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

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Compatible posts with TUNE Speedneedle:

- Tune Starkes Stück
- Extralite (all posts)
-

Compatible posts with TUNE Speedneedle:

- Tune Starkes Stück
- Extralite (all posts)
- Easton EC 70
-

_________________
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

Follow me on twitter. I try to be interesting
On Facebook!

Compatible posts with TUNE Speedneedle:

- Tune Starkes Stück
- Extralite (all posts)
- Easton EC 70
- Thomson seatpost (a friend of mine runs this combination)

_________________
My homepage. http://www.trekoclv.webbyen.dk/

Seatposts compatible with TUNE Speedneedle:
- Tune Starkes Stück
- Extralite (all posts)
- Easton EC 70
- Thomson seatpost (a friend of mine runs this combination)
- USE Alien with OS head
- Control Tech RP Carbon Comp
-
-


Seatposts NOT compatible with TUNE Speedneedle:
- USE Alien
- Easton CT2
- M2Racer
- Race Face XY
-
-

_________________
"Gimondi è un eroe umano, che viene sconfitto ma che continua la sua corsa fino a tornare a vincere." - Enrico Ruggeri

I heard the New Ultimate BTP is not compatible, is this true?

_________________
BILL NIKO, YOU WILL NOT EVER BE FORGOTTEN.

And a Shannon seatpost ? Is it compatible with the Speedneedle ?

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Scott Scale 10 .

I think that the New Ultimate should fit the speedneedle saddle - it's the same seatclamp-design as the Tune and the Extralite posts!

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My homepage. http://www.trekoclv.webbyen.dk/

Well, the bolts have to be loooong enough. And, yes we can always put in longer bolts.

_________________
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

Follow me on twitter. I try to be interesting
On Facebook!

USE Alien with OS head only works if you file away between 1.5mm and 2mm off the clamp head. I have done this successfully.

_________________
"Ride it like you've just stolen it!"

Seatposts compatible with TUNE Speedneedle:
- Tune Starkes Stück
- Extralite (all posts)
- Easton EC 70
- Thomson seatpost (a friend of mine runs this combination)
- USE Alien with OS head (only after modification)
- Control Tech RP Carbon Comp
-
-


Seatposts NOT compatible with TUNE Speedneedle:
- USE Alien
- Easton CT2
- M2Racer
- Race Face XY
-
-

_________________
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

Follow me on twitter. I try to be interesting
On Facebook!

Moots Straight Laced and Laid Back - Seat posts are NOT compatible with the speedneedle.

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Just before ordering my M2Racer seatpost I inquired about it's compatability with the Tune Speedneedle and was told this combination will work...

_________________
BILL NIKO, YOU WILL NOT EVER BE FORGOTTEN.

A good friend has just recieved the New Ultimate post and will be using it with the Speedneedle - attached is the picture I got of the combo yesterday.

I had a M2racer post and it did not work with my Tune speedneedle. I couldn't clamp the post enough to make the seat tight......rails were too big. Clamp could be filed a bit bigger and it would work I assume