Hey all. My fifth gen' has been producing a pronounced "Tap" sound whenever I use the front brake. It happens even with relatively gentle braking force, and I can't detect any play in the head bearings with the font wheel in the air, so was wondering if anybody had encountered the same... I'm wondering whether it's a result of the pads clicking against the inside surface of the caliper/s when they grip the disc, but the pads have been in place since I bought the bike 4 or 5 months ago, and it wasn't happening then. Perhaps the little plate-spring that sits inside the caliper against the pads has lost it's shape and springyness? I'm unconvinced on this one, because that spring would seem to be there to hold the pads in the forwards/backwards dimension, rather than vertically, as they might roughly move were this the case, but I'm struggling to think of anything else it could be. The noise is noticeable if the brake is applied while rolling the bike backwards as well, and can be felt through the bars. Anyone have any thoughts?