Campy front derailler cable explosion.
Picked up a used bike with Record ten shifters and deraillers. Noticed a small crack in the cable housing where it meets the cable guide hear the steerer tube as I was assembling the bike. I shortened the stem 10mm from a 130 to 120. Today during my second ride on the bike I noticed the front derailler was not shifting well at all. Lo and behold, the cable housing was completely frayed near the guide and kinking /binding the shift cable. What would have caused the housing to explode, as it is itself wrapped cable and plastic? I am ordering new housings. Should I shorten the housing at all or just slap a new one on?