Review on Jagwire - Pro 5 mm KEB-SL Compressionless Bicycle Brake Housing with Kevlar-Reinforced Construction, Slick-Lube Inner Liner, 10 Meters, Available in Various Vibrant Colors by David Ramirez

Got this to build a Crust Bombora with Spyre brakes and double wishbones. This is a full body length XXL frame. While I'm not thrilled with the Spyre brakes, the compression-free casing makes them feel a lot more solid than the wound ones. I've also installed it on a few bikes with rim brakes. Not a game changer with good dual pivot brakes, but certainly less squishy overall braking feel. I bought some Jagwire connectors to use the coil housing for the first 6 inches or so from the lever to gently flex the inside of the handlebars. It's expensive, but for mechanical drives, it's definitely the best option.