Those holes are worthless. Why? Discs are drilled to allow gases to escape via the disc's center ventilation "ribs," Pads generate gas as they heat up. Remember: energy can neither be created or destroyed, but merely transformed.
Those holes are worthless. Why? Discs are drilled to allow gases to escape via the disc's center ventilation "ribs," Pads generate gas as they heat up. Remember: energy can neither be created or destroyed, but merely transformed.