Brake rotor(s) uneven or warped causing binding to pads and making them clunk? IDK. I had a clunk in my brakes but only when braking. It's worth looking into. Does it seem to clunk in sync with the rotation of the wheel?

 

It's definitely a cyclical clunking at very low speeds, however as soon as i put any pressure on the brakes at all it stops. I popped the front right tire off today and I'll post some pics later. The brakes also squeal something awful unfortunately too whenever I do brake.

 

this may sound crazy/ stupid lol but check the lugs, on my old honda i had it was like that and turns out i snapped off 2 wheel studs