Enclosed design of old-style brake drums prevents brake dust escaping and could help automakers meet EU's new brake emission regulations
Car brakes and tires are being targeted by new emissions rules. New brake materials and older designs could help meet limits. Stricter Euro 7 regulations come into force in November 2026. As of 2025, the once-ubiquitous humble brake drum has practically faded into obscurity, and fade is a familiar word for most people who have ever driven a drum-braked classic car hard on a twisty downhill run.
Automakers and their suppliers have investigated multiple methods of cutting down on brake emissions, the most obvious being the use new types of brake discs and pads. One solution is to apply a coating to steel brake rotors, the BBC reports; another is to switch to brake pads that wear more slowly and carbon discs like the ones used on supercars. Though expensive, they can reduce emissions by 81 percent. Why Drums Still Matter Still, another option is to bring back brake drums.
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