I have a new Cervelo R5 and this came with it. Never used it because I could never get my saddle far enough forward (very slack seat tube angle on that frame). Awesome post. 163 grams. $125 shipped to a valid PayPal address within CONUS (most retailers have it for $250).
Here’s a link to the same seatpost for sale at Competitive Cyclist so you can read all the details. http://www.competitivecyclist.com/...ickbQCFQGFnQodeHcAzA
This is uncut and unridden.