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Seatpost...Carbon vs Ti vs Al ?(9 posts)

Seatpost...Carbon vs Ti vs Al ?Chainstay
Nov 22, 2003 5:46 PM
Is there a difference in ride feel between different material seat posts? In theory c.f. would have more dampening and Al would be the stiffest but can you tell?
dependscyclopathic
Nov 22, 2003 6:06 PM
if you have fist or more exposed, yes, if less not likely. btw do not dicard some lightweight Al are pretty lively, and some CF are pretty stiff.
I am willing to bet not...russw19
Nov 22, 2003 7:35 PM
And I think in theory the only reason the carbon would have any damping properties is based on how the fibers are laid. Between the two metal posts, Ti should dampen better than aluminium, but I am willing to bet money that all you feel is placebo from spending more buying a carbon or ti post over a cheaper aluminium post.

Russ
Agree....lyleseven
Nov 22, 2003 9:10 PM
And you will spend more money once your CF post seizes in the seat tube! I have had all three and Ti or Alum is just fine. I toured all over Ireland with a cheap Kalloy aluminum and the ride was great.
That won't stop some people from swearing up and downMatno
Nov 22, 2003 9:38 PM
that their seatpost gives them more "cush" when they ride the rough stuff. Balderdash if you ask me. If you can feel the difference on a non-compact frame, you must be riding on bare rims. Tires soak up most of the vibration, the frame takes care of the rest (if you've got a good one). If you have a compact frame with a long seatpost, you MIGHT be able to feel a bit of difference if your seatpost angle is really slack. I'm not convinced.

I also toured last summer on a cheap Kalloy seatpost (hard to beat a strong, reliable seatpost for $9!) and it didn't feel a bit different than my Easton carbon one that I usually ride with. It felt much heavier though... ;^)
and a good fitting saddle is more important...lyleseven
Nov 23, 2003 7:23 AM
My cheap aluminum post isn't even that much heavier....Amen..
Yeah, and...Matno
Nov 23, 2003 6:17 PM
you can always get one of those Koobi "suspension" saddles with the elastomers built in. My wife's Performance Forte road seatpost cost $19, weighs about 209g, and works every bit as well as the carbon Easton I stole from her (hey - it matches my bike better!)
That won't stop some people from swearing up and downMShaw
Nov 24, 2003 4:44 PM
That would be me. I raced the 24 hours of Canaan a few years ago. Had a Dean Ti post on my bike. It did flex just enough to take the edge off the nasty little bumps in the meadow section of the course.

I haven't noticed it lately with my Syncros AL posts.

Must have had something to do with riding with the post almost the whole way up... and my fat arse...

I couldn't tell you if the same Ti post flexes or not in my cross frame 'cause I don't have all that much sticking out of the frame.

Mike
absolutely no difference for megrandemamou
Nov 23, 2003 7:47 AM
I cracked a Ti seatpost and used a throwdown Al for about two weeks and replaced it with a carbon one. I could not find a bit of difference between the 3 materials.

Tires, tire preassure,and seats can really make a difference seatpost material is irrelevent. If you want light weight go carbon or Ti otherwise Al will work just as well.