Lately the front brakes have me a bit concerned. The bike is a very dangerous 150cc yamaha as it is. I set up, squeeze on and about halfway through application I get this loud click sound. There is also a felt vibration through the brake lever. What can cause this? Surely the pads have nit had it in 8k kms of city riding? Its really strange as if I had to guess it sounds/feels like the pad is shifting a few mm when I brake. Am I about to have a brake failure scenario or is that pretty standard brake wear? Thanks.