SDG Components Tellis Cartridge

You likely need a new cartridge if your seatpost is sagging when you sit on it, returning sluggishly, or failing to stay in the set position. These symptoms typically indicate that the internal hydraulic seal or pressure has failed.

This specific cartridge is designed for the 230mm travel version of the SDG Tellis dropper post. Always verify your current post's travel length before purchasing to ensure the cartridge length matches your specific model.

Yes, it is a straightforward process for anyone comfortable with basic bike maintenance. The kit includes the necessary lock nut tool, and you will only need standard shop tools like a strap wrench or vice to complete the swap.

The bottom-out bumper acts as a cushion for the internal mechanism when the seatpost is fully extended. It helps dampen the impact at the top of the stroke, preventing harsh mechanical clunking and extending the life of the cartridge.

No, this is a sealed hydraulic cartridge system. You simply remove the old unit and install the new one, so there is no need to deal with messy hydraulic fluid or bleeding procedures.