Commercial Vehicle Rear Brake Disc for BMW ECE R90

ECE R90 rear brake discs, specifically engineered for BMW commercial vehicle series, precisely fit the rear braking systems of mainstream models such as the BMW X7 Commercial Edition and 2 Series Gran Tourer Commercial Edition. Deeply tailored to the heavy-duty, high-frequency braking characteristics of commercial vehicles, these discs strictly adhere to BMW's original factory braking parameter standards, making them the professional choice for aftermarket replacement and operational upgrades in BMW commercial fleets.

Dual-Empowered for Safety and Heavy-Duty Adaptability: Certified under ECE R90 EU safety standards and rigorously tested by BMW Commercial Vehicles OEM, the disc body is precision-cast from high-strength gray iron with added wear-resistant alloy components. Achieving a hardness of HRC 30-35, it withstands braking loads under full commercial vehicle payloads. Paired with an optimized ventilation structure, heat dissipation efficiency increases by 30%, effectively suppressing thermal fade during heavy-duty continuous braking.

Core Rust Prevention and Durability Design: A dual-layer anti-rust coating process forms a dense protective layer on the disc surface, resisting mud, rain, and snow erosion from frequent commercial vehicle operations in logistics parks and suburban routes, significantly reducing corrosion risks. Addressing the high braking frequency of commercial vehicles, the disc undergoes precision dynamic balancing calibration, improving wear uniformity by 25% and extending service life to meet operational demands.

OEM Compatibility Balancing Convenience and Performance: Fully matches BMW commercial vehicle rear brake caliper installation specifications for direct, modification-free fitment. Suited for core commercial vehicle scenarios including business transportation, short-haul freight, and high-frequency commuting. Structural optimization disperses resonance during braking, reducing squeal in harmony with commercial vehicle brake system characteristics. This ensures operational safety and driving comfort, fortifying brake reliability for BMW commercial vehicle operations.

• 100% critical dimensions, runout and DTV inspection 

• Material physical and chemical inspection

• Test shear strength, compressibility, density, flatness and parallelism 

• Test performance and noise/NVH