SDG Tellis Cartridge Assembly A Replacement Cartridge Everyone knows that parts wear out over time. Luckily many parts can be replaced with ease. The SDG Tellis Cartridge Assembly is a replacement part for your SDG Tellis Dropper Post. It comes with a Bottom Out Bumper and Tellis Lock Nut Tool. It is available in multiple travel lengths. Features Designed for the SDG Tellis Dropper Post Includes a Bottom Out Bumper as well as a Tellis Lock Nut Tool Available in multiple travel lengths | Sdg | Tellis Cartridge Assembly 125Mm