External Black Dropper


Thomson external dropper re release… in triple black! External droppers supply the perfect solution for a non-internally routed frames… whether MTB, Gravel or a fun retro build we’ve got you covered.

125mm travel, 27.2 diameter, remote actuator and cable kit included. Our cartridge based system and new remote shifter offers ease of use.

Pair with our seat post clamp, X4 stem and bars for the complete matching cockpit!


DP-E112 27.2ø X 125mm travel


The Thomson External Dropper includes a new shifter oriented remote lever for easy operation. The cartridge-based system is designed to have the longest service life in the industry. If repair is needed, it’s fast, affordable, and simple. Every part that makes up the External dropper is carefully chosen, and of the highest grade quality available.

  • Custom made Norglide bearing bushings and Trelleborg O-Rings and seals
  • Thomson saddle clamps and fasteners
  • Motul Oil for durability and precision quality.
  • The return speed is damped in the last 15mm of upward travel to be gentle on your seating area.
  • 125mm of infinite travel.
  • Passes ISO 4210 fatigue and strength tests for seat posts.