The XRM 125 Trinity uses Honda’s Combined Braking System. When you pull the left lever, it activates both front and rear brakes. The parts catalogue shows the equalizer spring and the specific brake cable lengths (which are unique to Trinity). Using a standard XRM cable will cause brake drag.

If you have never used a Honda parts manual before, it can look intimidating. Here is a quick translation guide:

Some dealerships (like Honda Philippines or local 3S shops) provide digital access to the parts system. If you ask nicely, they may print a section for you or email you a PDF of the specific page you need.