KS eTEN-R Dropper Seatpost - 27.2mm 100mm Black. The KS eTen-R represents one of the best values in dropper seatposts featuring a cartridge-based architecture remote actuation and sleek black anodized finish. Alloy stanchion features a sleek black anodized finish Alloy mast Sealed air sprung hydraulic cartridge Short insertion length to travel ratio Lever actuation Single-bolt alloy head Remote sold separately; compatible with all KS Southpaw KG and Westy remotes External cable routing