My 2014 Hyundai Elantra needed new brake lines, and now the pedal travel is a bit longer than it was. I don’t have specific measurements, and the brakes do work; it just feels like I have to push further to fully engage the brakes. Two things: is there a way to adjust this; and how difficult would it be? I wouldn’t have to bleed the brake lines, would I? I checked the brake fluid level, and it’s between min and max.
You have not completely bled the air out of your new lines. Simply changing the lines will not have any effect on the pedal travel but air will.
I prefer to use a vacuum bleeder but you can also use the 2-person method. Keep in mind that you have had the system entirely open and let a lot of air in. It will take some time and effort to get it all out.