The Covert Dropper Seatpost sets the standard for dropper posts... now available in all black. The cartridge-based system is designed to have the longest service life in the industry. If repair is needed it’s fast, affordable & simple. Every part that makes up the Covert dropper is carefully chosen & of the highest grade quality available. Custom made Norglide bearing bushings, custom made Trelleborg O-Rings & seals, Thomson saddle clamps & fasteners & Motul Oil. The Thomson Covert Black Dropper is hands down the industry standard. Hands down the industry standard. New Shifter orientated Remote Lever. (Not Included) Cartridge-based system for long service life. Custom made bushings, O-Rings, Seals, Saddle Clamps & Fasteners. Available in 65mm, 100mm, 125mm & 150mm travel options. Only 493g (30.9mm with 125mm travel).