You cant just change the top on the factory brake line, its all one, so yes, you have to replace the whole thing.
I think these are the best out there. http://www.magnumshielding.com/
Sorry to highjack your thread, but did anyone on here use the la chopper front brake kit, and can you sent a pic of where it it bolts to the bottom of the triple trees, mines not fitting properly
Chadepperson99- The factory puts a roll pin in the botton tree to id the mounting block. I had to pull the pin to get my block to fit flat against the tree. Just put a lock waher between the block and the tree. It all moves as a unit anyway, so I cant see it being a problem.
+6 on both side. I went +8 on the clutch, could have gone 6. Depending on the manufacturer you may need an upper and a mid line with abs. That's how magnum does it. I went with their sterling chromite cables. After doing a couple of these I would go ahead and pickup a SE TBW. It relocates the plug to the bottom of the bars. Much easier to pull. Also Pickup some poly bushings.