I riveted the mounting tab for the front brake line on the outside of the frame as shown in the manual. Later, I discovered that there is an aluminum panel on the inside that meant I had to cut a hole for the brake line and then it was tough to get a wrench on the brake line fittings. I then re-mounted the brake line tabs on the inside of the frame flush with the panel. Of course, check that your flexible brake line is not stretched at full turn.