Gear cables for rear derailleurs or dropper posts:
These are the same high-quality gear cables we use in our workshop for performance bikes:
Jagwire slick-coated stainless gear inner cable 2100mm
2 Metres of Jagwire Pre-Lubed 4mm Gear Outer - Long enough to do continuous outer on all bikes except tandems/recumbents!
2 x Shimano SP41 sealed end ferrules
1 x Cable end crimp