I have the seatpost shown in the pictures below. It came on a 2010 Specialized Tricross. It looks like Carbon fibre on the outside, but when you look at the open end of the tubing, it actually looks more like a thin layer of Carbon over a normal Aluminum tube.
I have two questions:
Am I correct that this tube is mostly aluminum with just a bit of carbon outside? If so, why would they even bother adding the Carbon? Just for show?
If it is mostly Aluminum, would it be acceptable for a long bike tour? From a durability perspective, that is. The reason I ask is I just got a new bike that came with a pretty basic metal tube with a hard to adjust seat clamp and less offset than this Carbon-wrapped one. I would prefer to use the Carbon seatpost from my Tricross since it has the offset I'm used to and a nicer seat clamp that's a bit easier to adjust fore/aft position and tilt separately.