A friend helped me narrow it down to either a loose brake pad. It just all of a sudden it went bad. No prior symptoms other than a warped rotor. I was turning and applying the brakes and all of sudden I hear pop pop grind sorta noise. Slowed down to try and listen to what it was but slowing down only made it worse. Looked underneath and found a oily/greasy washer from my leaking birfied. I was on the way to class so I tried to make it in time and park it in a parking deck. It gets worse as I apply the brakes. Sometimes it seizes up and I can no longer move forwards so I go in reverse a little bit and then I can start moving forwards again. After I get into the parking deck, I inspect the tire again and I hear a hissing sound of an air leak. I didn't think twice about it so I just went to class. I come out after class and I found the cruiser sitting on the rim on one side...