The Xiaomi SU7 Ultra is equipped with a top-level braking system, including carbon ceramic brake discs, high-performance fixed calipers, and high-performance brake pads. It achieves a braking distance from 100km/h to 0 in only 30.8m, and completes 10 consecutive 180km/h-0 braking tests without fading. The Xiaomi SU7 Ultra boasts the largest racing-grade carbon ceramic brake disc in a sports car. The diameter of the front brake disc reaches 430mm, which is the largest carbon ceramic disc currently equipped on a sedan. Compared with ordinary steel brake discs, carbon ceramic discs are more resistant to high temperatures, with a maximum operating temperature of more than 1300°C, which is more than twice that of ordinary steel brake discs. Carbon ceramic discs are also more wear-resistant and lighter. Its service life exceeds 500,000km, and it also reduces the weight of the entire vehicle by 57kg.
The Xiaomi SU7 Ultra is also equipped with Akebono®️ high-performance brake calipers. The working areas of the fixed calipers with six pistons at front and four pistons at rear reach 148cm² and 93cm² respectively, delivering exceptional strong braking performance. Xiaomi SU7 Ultra also uses endurance racing-level ENDLESS®️ high-performance brake pads*, which can operate at a maximum temperature of 1100°C and keep the braking force stable. In addition, Xiaomi SU7 Ultra's efficient braking energy regeneration system provides a maximum deceleration of 0.6g and a maximum regeneration power of over 400kW, greatly reducing brake system load.