Rockshox Reverb Stealth Dropper post 34.9 x 170mm. It will need a bleed. You can change the diameter by using a different sleeve around post.
All items in picture included. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Seatposts". The seller is "cccjr15405" and is located in this country: US.This item can be shipped worldwide.