Shortly after I bought my 1995 built KF4-1200, I decided to replace the brake lines as part of my back in service maintenance and I'm very glad I did. Looked ok but I was shocked at how hard and brittle the line looped between the gun-drilled spring gear to caliper had become. Definitely a problem waiting to happen ie., one bump on an off field landing or inadvertent kick of a foot could have contributed to potentially serious situation.