|carbon or ti seatposts||Pendro|
May 11, 2001 2:34 PM
|I have a LS Ultimate with an aluminum seat post. I'm looking to get either a carbon or ti seatpost. I've heard that carbon is more comfortable but fragile; whereas, ti would be more durable but care needs to be exercised in installation (ti prep, etc.) With either one, any specific recommendations? I've heard Easton is good and mixed reviews of Alien.|
|substantial setback difference...||dave|
May 11, 2001 3:07 PM
|The two posts you have compared will position the saddle much differently. The Easton has lots of setback, the Alien is much further forward. Check the position of the saddle on your current post, before deciding on a model. The idea is to have the saddle somewhat centered in the range of available travel.
The material choice is up to you. Ti should be more durable, just put some grease or Ti prep on it before you install, to prevent galling.
May 11, 2001 3:07 PM
|Carbon seatposts suck up road vibration like crazy. Almost like a bit of suspension.
And they are NOT fragile.
Aluminum ski poles almost always break before carbon poles.
Try carbonlord, he has some great carbon seatposts at a great price.
|Carbon rules!||Aer Jer|
May 11, 2001 3:15 PM
What gives? Everything I've read or heard until now discounts that carbon seatposts give additional compliance. The distance on a seatpost is so short and the orientation of the fibers does not lend itself to compliance. Rather what I was told is that the main reason for carbon seatposts is for the weight reduction.
Counter arguments are welcomed bacause I love compliance!
|I went from aluminum to carbon and noticed no difference.||bill|
May 11, 2001 4:02 PM
|Not a whit. Now, elastomers in the saddle; they'll make a difference.|
|well, i think so anyway.||Largo|
May 11, 2001 4:08 PM
|Carbon fibers tend to "dampen" waves, that is, it does not transmit vibrational forces all that well.
In my case, i have more seat post showing than is common, and i have noticed a LOT less road shock coming through the seat since switching to carbon from an aluminum post.
I think in a very short span, you are probably right.
Be that as it may, carbon still damps vibration.
Or something like that:)
|re: carbon or ti seatposts||got2ryd|
May 13, 2001 7:12 AM
|my only experience with a carbon seatpost was on my mtn frame. it was the first time i was using it during a race. in my first lap, the head of the post came apart from the post. it was a titec. very disappointing to say the least. but i will say that it was very compliant and comfortable while it lasted. i now use a moots ti post. not as comfy as the carbon, but super strong and light.|| |