aluminum post ride quality & carbon frames

[Cataboo]

The carbon frame is going to be deadening most of the vibrations... I don't think you'll really notice vibrations from the seatpost.

Vibrations for me are worst around the wrist.... my bum can take a fair amount without complaining. But... I can't say other than my mountain bike I've got any bikes with an aluminum seatpost.

And changing materials also contributes to deadening vibrations... as in vibrations go through the carbon (or mostly not), then they get to the aluminum which needs a different frequency or energy of vibration and making that shift deadens the vibrations somehow as well (I am completely explaining this wrong, I'm sure. I'd have the bf say it in some way that made sense, but he's not here right now)

[Andrea]

I love Thompson posts, and I don't think they change ride quality at all! I've found that tires/tire pressure have the biggest impact on vibration dampening. On a road bike, a 25c tire @ ~100psi will make rough patches of road much more bearable than any carbon part could even begin to!

[Bluetree]

I've had both carbon and alum seatposts on my carbon frames. No difference at all. If you're looking to save weight if might make a tiny difference, but the Thomson Masterpiece I settled with is as light as most carbon posts.

As mentioned, tires will do a lot more for comfort.

[Mr. SR500]

I've had both carbon and alum seatposts on my carbon frames. No difference at all. If you're looking to save weight if might make a tiny difference, but the Thomson Masterpiece I settled with is as light as most carbon posts.

As mentioned, tires will do a lot more for comfort.

+1 I love my Thomson Masterpiece on my Madone!

[Bluetree]

Thomson makes great seatposts.

Stay away from Alien seatposts...I've heard more complaints about broken seatposts than all other brands combined - by far!

[VeloVT]

I think you can't go wrong with a Thomson post. I don't think it will feel "harsher" in a carbon frame. That said, I have an FSA K-Force carbon seatpost on my roadbike:

http://store.nexternal.com/shared/St...rce=googlebase

I bought it largely because it is available with a lot of setback, but I was also looking for a two bolt design, and this one is infinitely adjustable and just as easy to adjust as the Thomson post on my cx bike.

Not crazy light though. I think it's probably heavier than the masterpiece.

[Miranda]

Thx to everyone that chimed in thus far.

Liza... I knew there was some type of carbon post that had that two bolt design. Thx for posting that link!

Well, it sounds like people are happy with this type of set up. It looks like the post that my shop put on the spec sheet must be the Thomson Elite by the weight listed, and not the Masterpiece (lighter version). Both look to be a nice design.