Hey chaps,

Two weeks ago I was riding down a monster mountain, bike fully loaded with girlfriend on the back. I was using my back brake... a lot.
As i neared the bottom the brake pedal became flimsy and there was absolutely no bite whatsoever and no resistance in the pedal - felt like the spring had been removed. Rather scary, but luckily the front saved the day.
Once they've cooled (30 minutes) they're fine and back to working order

I assumed the pads/ disc overheated and maybe lost its bite because of dirt. I took the calliper off, pads out, inspected, thorough clean and reassembled.

Two weeks on and i'm riding down an even steeper mountain, back brake does it again. 20 minutes to cool off and they work.

I've never experienced this before, complete loss of the brakes due to overheating - if that's what it is.

Can anyone shed any light on this for me please, would be greatly appreciated!

Thanks,

Andy