Upgrading your ride doesn't always mean losing your savings on a set of carbon wheels or saddle , printed on a 3D printer. One of the simplest and most ignored updates you can choose is to replace the shift cables with a new set such as Jagwire's 1x Pro Shift Kit for bikes with single chainring drivetrains. Polished cable and housing provide improved shifting accuracy and durability when your old cable system is weak and stretched. Includes extended cable for larger frames or continuous enclosures as well as small parts suitable for road or mining installations equipped with only a rear derailleur or an internally geared hub.