[Theunz]

Dot 3 brake fluid has a wet boiling point of apx 400 degrees Fahrenheit. At that point you will start to get brake fade. If you release the brakes and stay off them the temp will go back down and your full braking ability will return. If you are going down a long steep hill and over use your brakes you can reach that point within a few minutes. On a flat curvy road you would have to be really flying to over heat your brakes. On Road race cars you can actually see the discs glowing in the dark because of the heat they develop briefly, however it quickly dissipates when they accelerate and create cooling due to to the high air velocity going over them. All this is to say that 50 to 80 degrees over ambeiant is nothing to be concerned about. One of the advantages of disc brakes is that they shed heat much more rapidly than drums.