My mtb has Avid BB 5 disk brakes. While reading up on these I came across a couple of reports of these brakes "giving out" and failing. Any truth to this? The reason I'm asking is the roads I ride here are veryhilly. One hill has about a 20-30% grade, if I'm correct. I would be in big trouble if I lost my brakes while going down this, or similar hills.
Am I safe with my BB 5's?