NEWMEN's Advanced Carbon seat post is particularly lightweight, stable, safe and user-friendly. Easy to install and adjust, it can be used together with carbon saddle rails without any problems. The seatpost has been designed with controlled flex behaviour, which further enhances comfort. You won't feel any unpleasant kickback sensation when riding over obstacles, and while it won't permanently prevent you from feeling all bumps, unwanted " bouncing" at high cadence is strongly reduced. With this seat post, you can spend many more hours on your bike.Features: controlled flex simple assembly precise adjustment of the saddle inclination to the millimetre very gentle saddle clamping best suited for carbon saddle frames high safety and durability lightweight titanium bolts