Yoann Barelli tries his hand at huge jumps and doesn't shy away from sitting in a bathtub filled with ice cubes. Why does the enduro athlete do this? In an elaborately produced clip, Sram shows that the bathtub plug can be seen as a symbol for the seals in a disc brake. It is also about the old war of faith as to whether dot or mineral oil fluid is the better medium to ensure movement in the brake.