... fiber 2.EN standard 3.super light 4.OEM 2012 high quality best carbon bike seatpost light weight 160g Features:1. ... of carbon fibers, such as high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance and low thermal expansion ... , military, and motorsports, along with other competition sports. 2012 high quality best carbon bike seatpost light weight 160g