If anyone can help, i own aacfo x1s but it squeaks when im riding from the front wheel brakes. Its a loud screech sound and i took it yesterday to get it fixed by some dude (clean brake pads and to tighten my brakes) he only tightened the back one lol and front one was loose so i just fixed it myself. What should I primarily focus on doing? Readjusting my brakes pads? Cleaning brake pads? Cleaning rotor or if anything doesnt work then do i just get new brake padsand rotor? Any feedback would work. Thanks!