Dear friends!

My Focus Culebro Tria (2009) has the following seatpost:

Kalloy TT seatpost

Alloy
Width 25.74mm (it is 25.9mm diameter gap in the frame without the seatpost)
Tear drop aero design.
55 mm from back to front
350mm length




To the frame it is attached with the following 2-bolt clamp:


QUESTION: is there anyway to change this seatpost for something like this ?

Thank you for any help!

It's wing shaped , not round, so Probably Not.

Buy a new frameset, instead.

you would need custom Machine shop time to Make an adaptation part ,
and cost will exceed just replacing the frame

with something PRC , Generic , like Nashbar sells.

Now you know why us old wrenches don't like these modern marketing focused (no pun intended) bikes. Andy.

Well if you are having issues keeping the seatpost in place the fix is not hard and can be done at home. The good news is that the seatpost is made of AL and will last a long time, was carbon and hard to get then is kind'a problematic. I'm speculating that you are asking for a replacement because some crap is going on.

If the thing slips down just take the seatpost out and :

1 put carbon fiber paste in the seatpost and seatpost.

2 grab the black piece out and file it a tiny bit so now is forced to go deeper, obviously file it in the flat contact areas. Maybe 1 mm will be enough.

3 put everything together, tight and ready to go

Good luck.

I vote with Andy on these one off designs being rather ill advised (except for well heeled racing teams). But since you have one and you haven't indicated in your post that you have broken any proprietary, not generally available parts yet.... I would recommend starting a search to see if you can find a spare for each of the odd parts...and that seatpost would seem to be one of those. It would be a bummer to break something and find that the entire bike is useless for the lack of a small bit part.

On the side (and tongue sightly in cheek), if the SP dies, you might get lucky by looking for an aero frame tube (in the Framebuilders | Suppliers) forum. Some of those tubes look close to the right shape. If it measures out right then $20 for the tube + $15 shipping + $20 for a regular SP to steal the top clamp part from + $60-100 for a shop to make it happen.... well it makes buying a new frame seem like a pretty good deal. You could sell the old frame on Craigs if you do it while the existing SP is still unbroken.

On the otherside; A lot of folks on the Frame Builders forum talk of their efforts in making things of CF. You might be able to build up a new skill and DIY a part for yourself...

Going the other way here, and really not understanding what the issue is with aero posts. The OP has a TimeTrial specific frame, the whole idea of them it to be as aero as possible, and a traditional round post fails in this, where as the aero post supplied does exactly what is required of it.

If the OP had a regular road bike, could understand the concern about having a non-standard part, but TT bikes are often a host of non-standard parts, if you don't want them, don't get a TT bike.

Thank you guys very much for your answers. The reason why I would like to change the seatpost is simple - I just do not like it. And I see that the best way to change it - buy a new frame... I will think about that.