Can I fit an internally routed (stealth) dropper post to my frame?
By Crankworthy · Published · Updated
Only if your frame has internal routing for it — a port in the seat tube, usually near the bottom bracket, for the cable to enter. Without one, choose an externally routed dropper, where the cable attaches at the post's head.
Why
A stealth dropper's cable runs inside the frame and connects at the bottom of the post, hidden in the seat tube. The frame needs an entry port and a clear path for the cable to reach it.
An externally routed dropper has the cable connect near the saddle clamp and run along the outside of the frame. It works on any frame with the right seat tube diameter.
How to check your frame
- Look for a port
- Check the seat tube and down tube near the bottom bracket for a small hole or bung meant for a cable.
- Check the spec
- Frame specs often say "stealth dropper compatible" or "internal dropper routing".
Externally routed droppers
These work on frames without internal routing. Match the diameter to your seat tube.
- PNW Components Pine Dropper Post (external routing)EXTERNAL cable-routing dropper, 27.2/30.9/31.6mm, 90-125mm travel — retrofits frames without internal ports$199.00Amazon
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