Disc brakes are still less prone to fading out. Drums hold in the heat during long downhill runs and don't cool as quickly during repeated braking events. They

Disc brakes are still less prone to fading out. Drums hold in the heat during long downhill runs and don't cool as quickly during repeated braking events. They may generate less heat per stop, but they also don't dissipate it nearly as quickly when they do get hot. You don't want to choose them in them mountains, they're fine for a quick panic stop or two but beyond that, you're going to be much better off with a disc brake.