I installed four of the single-line 3/16″ clamps from Lodestone BilletWorks to secure the brake line where it crosses the x-frame. These are custom clamps that fit the 2″ diameter tubing. The only unfortunate thing is that the screw holes aren’t drilled perpendicular to the radiused back. This causes the clamp to not want to sit flush with the tubing. There’s enough give that it sorta works out, but these could be better.