Yes, you do need to reroute cables/wires/brake line. It's pretty self-explanatory when you go to raise the bar. I had to let the brake line block hang free, and removed the squirrely shaped "brackets" from the yoke. Also, went into the headlamp housing to get a little slack in one of the wire bundles. No big deal really.Mind if I ask what the installation entails? Is it as simple as unbolting the handlebars and just putting on the risers? Is there any rerouting of cables that needs to be done?