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Seat post decision: Carbon fiber vs. ti?(13 posts)

Seat post decision: Carbon fiber vs. ti?knifeguy
Mar 12, 2003 2:25 PM
Brief intro: I'm a fng, so don't bake me too hard on my first post. 30 years on top of a bike, mostly for exercise: a non-racer that likes speed.
I just bought my first Easton ultra light bike after riding steel for ever. Cyclocross frame with carbon fork--love it.
But the generic steel (?) seat post is about to be replaced. I'm looking for a post to smooth out the bumps.

Am I better off with carbon fiber or ti?

Thanks in advance,

Regards,

"knifeguy"
I've got alu, carbon, and ti seatposts. Actually, at this pointbill
Mar 12, 2003 3:10 PM
two carbon fiber and one ti. I used to have an alu. I got them all because they looked cool and it's fun to trick out your bike. Other than the clamps, which differ in ease of adjustment, there is no difference.
Get what looks cool. There is absolutely no, repeat, no difference. Don't trouble your pretty little head about it another second.
...get what won't break. Thomson. nmSpunout
Mar 13, 2003 4:59 AM
Thomson? I've seen one to break nmcyclopathic
Mar 13, 2003 6:27 PM
Not much Difference?lancewannabe
Mar 12, 2003 4:34 PM
Ive had aluminum and carbon fibre. Cant say I could tell the difference in the ride. I went to the alien carbon because of its light weight. I will probably replace it with the alien Titanium...only due to durability. The carbon post came with suggestions to replace it at least once a year to be safe.

My main consideration was weight, make your decision based on whats important to you...weight, looks, price, etc...
re: Yes, there is difference if the post stick out long...kai-ming
Mar 12, 2003 4:52 PM
My carbon seat post is definitely more comfortable than my aluminium post on my MTB. It is sticking out 8-9 inches. I suppose it will give the same result on compact road bike. Don't know about ti.
Ti = more durablerussw19
Mar 12, 2003 5:17 PM
Get Ti. Not for any comfort factor.. it can be argued that factor is negligable at best. But simply for the durability. You never have to worry about pinching a Ti post in the clamp and having it snap 3 weeks later. Just make sure you use plenty of Ti prep so it doesn't become a permanent fixture in your frame.. the knock on Ti.

Besides, I am of the opinion that the Moots Ti post is the sweetest looking post on the planet.

Russ
I've got the Moots seat postAmbishawn
Mar 12, 2003 6:51 PM
I'ts the best seat post made period. I have it on my mtn bike and notice it does give a little over the bumps but it's a lay-back model and has 8 inches or so sticking out of the frame. This seat post never slips and has the best possible clap design period. It is a little hard to get a seat in but how often do you change seats anyway? I did go with a Thompson elite aluminum on My steel framed roadbike. Desided on the Thompson for 2 reasons, 1 the Moots seatpost is $160+ , 2 the road frame only has about 4 inches of exposed seat tube so it ant gonna flex nomatter what it's made of.

I'd steer clear of the carbon fiber seatposts out there. I was considering one for My road bike and have heard nothing but bad stuff about the clamps slipping and getting dented by seat post binders. Not to mention there almost always over $100 bucks. Both the Moots and the Thompson are bullit proof and about 180 grams, some of the carbon ones like the USE alien carbon will cause you lots of headaches for a savings of 50 grams.
It's mostly about the tiresKerry
Mar 12, 2003 5:11 PM
Unless you have a LOT of seat post exposed, you likely won't be able to tell the difference between seat posts based on CF, Ti, or Al. You'll get your comfort from larger tires/lower pressures. Also, there's virtually no chance that you have a steel seat post. Pull it out and scratch it with your car keys, if you need to prove it to yourself.
Stick with Aluminum or Ti.MR_GRUMPY
Mar 12, 2003 6:44 PM
Almost all road shock comes UP the seatpost, so there isn't any material that compresses that way. A good Aluminum or Ti seatpost will bend a little when you crank hard while seated. The best Aluminum seatposts are as light as Ti posts and cost about the same.
What? You mean I just stole a carbon seatpost...Matno
Mar 13, 2003 12:15 PM
Off my wife's bike for nothing?! :^) Okay, I actually took it because it was a little too short for her mountain bike, but perfect for my road bike. (Confession #2, it was a little too short for ME to ride her mountain bike!) I'm a little bummed that it doesn't absorb vibrations from the road though. I guess I'm just using it for its looks now!

In fairness, to replace it I bought a Performance Forte aluminum road seatpost for $20 and it looks pretty nice. Not really a mountain seatpost, but my wife's not really a mountain biker. She just likes full suspension and happens to have a very nice bike (which doubles as our guest bike). At any rate, the Forte, like I said, looks good, seems plenty strong, costs $20, and only weighs a claimed 190 grams. Plus it's got a cool aero profile at the top. Hard to beat that combination!
re: Seat post decision: Carbon fiber vs. ti?knifeguy
Mar 13, 2003 6:32 AM
Thanks for the input. Anyone have a ti seatpost, 26.8, sitting in a parts drawer for sale?

Knifeguy
Considered suspension?czardonic
Mar 13, 2003 1:27 PM
You can snag an 26.8 RockShox post from Jenson for $45 (maybe even cheaper elsewhere). It's the MTB version, but then again we're talking about a CX bike.