Dropper post specific cables? Jagwire Pro Dropper Kit makes it a reality - Bikerumor
Jagwire Pro Dropper Mtb Road Bike Brake Cable Shift Line Set Transmission Tube Cables Wire Jagwire Pro Dropper Mtb Road Bike Br - Bicycle Cables & Housing - AliExpress
Jagwire Pro Dropper Cable Kit » Bob's Bicycles
Jagwire Pro Dropper Pro-Slick Inner Cable for Seatposts - silver | BIKE24
Amazon.com : Inkesky Pro Dropper Post Cable Kit - Manufactured by/Compatible with JAGWIRE (PRO-Slick Polished Stainless) : Sports & Outdoors
Dropper post specific cables are now a thing - MBR