A long time ago, a car guy told me that brake noise is caused by vibration. A lot of things can cause it, looseness in any component can set it up.
The remedy, he claimed, was to find the cause, or absorb the vibration. The disc brake quiet on the back of the pads is a good starting point, as it's
sole purpose is to absorb vibration. Pad material affects things as well. Pad glaze and Stainless rotors don't help things either.
Some guys sand the pads and add a chamfer to the edges. Some saw a cut in the pad to get rid of gasses that build between the pad and rotor during braking. Properly adjusted calipers help. They can only be adjusted properly if they are completely free to operate in the intended manner. Un pitted pistons, caliper hinge free with no loose parts, master cyl that works as intended, and hoses that don't swell when pressure is applied.... One thing I don't understand are the claims that a stock 750 has the inability to lock the front brake. My k4 stocker did it, as long as the brakes were dry, with Honda pads. A scary experience, but it could do it if you hit it quick and hard. Don't have pics, but I did a high sider once back in my younger days because of it. Learned from that experience.
In the rain?, find a bridge to sit under till the brakes dry and the rain stops. ... Just my experience, results may vary.
