i had a 97' cannondale super v 700 full suspension mountain bike that had a carbon fiber rear swing arm that had a internally routed rear gearshift wire. when my rear derailleur cable snapped and i had to replace it, i realized my swingarm had NO routing guide and i had to realy on my smarts, mac guyverisims and "the force" to get that cablewire back thru the swingarm. sting, ductape, wire... good luck if your isnt supported by an internal routing guide.