Just curious. Were you aware of the foot peg and control lowering kit that lowers both the footpeg and controls before doing this?
So I decided to file down the push rod (5) to be able to lower the brake pedal further.You can loosen the top nut #6 and rotate #5 clockwise looking from the top to raise the rear of the brake lever and lower the front. When it's where you want, tighten the top #6 nut. If you bottom #5 on the brake lever, you are out of adjustment room. Yon might get a little more by filing down the bottom of #5 but not much.
But modifying the brake system is legal?Yes, but It's not street legal where I live.