carbon bicycle seat post/full carbon seatpost 1.100% full carbon fiber 2.EN standard 3.super light 4.OEM carbon bicycle seat post/full carbon seatpost Features:1. Made of ... ,MTO and track3. Carbon Handlebar, Carbon Rims, Carbon Stem, Carbon Bottle cage, Carbon Pedals, Carbon Group Set, Carbon Crankset, Carbon Fork, Carbon Headset, Carbon Seatpost, Carbon Clamp, Carbon Saddle About ROSIT Shenzhen ...