I’d like to share a TrailOut LAB video. This one teaches you exactly how to make steel mesh brake lines for your bike/car in an inexpensive way.
"Common (rubber) brake tubes will not maintain their inner radius when the oil inside them reaches a certain temperature. Hard riding will stress the brakes making the whole line (disks, pads, oil & tubes) over-heat resulting in inconsistent or even lack of braking power.
Needless to say that this won't ever happen with a steel mesh braking line"
Disclaimer: This alteration is NOT street-legal in some countries. Please use at your own risk and preferably in off-road or race vehicles only. Not TUV/DOT approved. For your information only