Seat Post for the Trek 8700

The bottom aluminum one is what came on the bike.  I had a spare used carbon fiber seat post.  If it fits, I'll put this on the Trek... 

This is the seat post clamp that came on the bike.  Took it apart and cleaned the parts (forgot to take a picture before cleaning...).

There's a portion of the clamp where the aluminum is damaged and has a large raised burr (hard to see but it's just below the 3.18 stamping...).

Used a file to clean up the burr.  Now it's nice an smooth.

Ready to go back on the bike.

The interface where the seat post clamp goes is somewhat scratched up and dirty.

After cleaning (with a scotchbrite pad).

Had to spread the gap open (with a large screwdriver) so that the seat post will install easily.

First reinstalled the seatpost clamp.

Installed the seat post & tightened the clamp.

The carbon seatpost is made by Specialized.

Just bought this seat the Long Beach Motorcycle Swap Meet a couple of days ago.  Installed it on the bike (leveled it also).  It looks good.