I know, it seems like this is a never ending question..

Have searched through older threads, and looked around a while..

This is to go on my B&W gloss Cannondale Evo, the FSA K Force light one that came with the bike has too much (25mm) setback..

I have tried the USE Alien on my Supersix, but 10mm isn't quite enough, and I really dislike the clamp, + the 3K carbon won't match!
I don't want Aluminium, has to be carbon, ideally UD (Thompson Masterpiece is out then, and KCNC)..

Syntace P6, and probably not enough setback, (and a bit heavy)
Zipp Carbon, OK 20mm, setback, still a bit heavy, could cut down..
Ritchey, too much setback, ditto ENVE, ditto 3T
AX lightness, too exe

Just something lightweight <180g, that looks good, nice organic shape at the clamp, decent fixing system etc!!

There are a few on r2-bike.de that look OK, but again, not many in the 15-20mm setback..

Too much to ask?

Any help would be appreciated, cheers..

You could always nicely ask Jure from Berk composites if he could build you one to your desired specs.

The setback on both my Ritchey Carbon WCS seatposts (2-bolt clamp) measures out to exactly 18mm (center of post-to-center of bottom seat clamp on a 73 degrees seat tube angle)...interestingly Ritchey lists this post as 25mm offset. I just checked the website and it looks like they are offering some sizes of this carbon post in UD finish now.EM3

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My 2011 Cervelo R5

Pro Vibe or Pro Stealth EVO

I suspect there is a lot of aesthetics consideration involved in the decision?

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I can confirm this as well; not sure how Ritchey gets 25mm setback...

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Ritchey superlogic setback post at 350mm with carbon rail kit and tuned with ti bolt = 162g
Cut down to 280mm or so = 137g - pretty light for something with no weight limit and no specific clamp zone and setback.
Also - looks pretty.

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Evo 5.63kg SL3 7.045kg viewtopic.php?f=10&t=110579" onclick="window.open(this.href);return false;

Ritchey does list their 2 bolt clamp 'Pro Carbon' as 15mm offset though.

http://www.ritcheylogic.com/dyn_prodfamily.php?k=397710 ( Click on *Tech* tab )