Originally Posted by gauvins

In this entry of Cycling About the authors says 5 000k for rim and twice as much for disc brakes. On average. It should be obvious that 5000k on flat terrain and dry tarmac is much less of a challenge than steep dirt tracks on a rainy day. The same blog writes that some round-the-world tourers get 100 000kms on a set of (disc) pads...