External Black Dropper

Original price was: $299.00.Current price is: $199.00.

Retail Price: 299


Thomson External dropper posts 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, handlebar remote actuator and cable kit included. Our cartridge based system and new remote shifter offers ease of use.  (The older remote, Dp-A003, can be requested in the notes section, if preferred).  Under saddle lever coming soon!

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


DP-E112 Ø27.2 X 125mm travel

30.9mm, 31.6mm shim available here


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.
  • Find warranty information here.