We’ve now done a full on panic stop bombing down a 23% grade. The rear wheel locked almost immediately, and the front was at the threshold of locking. Had to let off a bit to avoid swapping ends.
So, the braking power of the setup is clearly limited by tire friction, as opposed to the brakes themselves.
Should be be able to test out heat fade tomorrow with a twisty narrow 13% descent that goes on for several miles.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.