Brake Disc for INFINITI, NISSAN Rear ECE R90

Custom-engineered for Infiniti and Nissan rear brake systems, precisely tailored for Infiniti Q50, QX50, QX60, as well as mainstream Nissan models including the Sylphy, Teana, and X-Trail. Developed in strict adherence to the original equipment (OE) standards of both brands, the installation holes and dimensional specifications perfectly match the rear brake calipers, enabling direct fitment without modification. Compatible with ABS/ESP electronic control systems, it suits diverse scenarios such as luxury commuting and family travel, making it a highly compatible choice for aftermarket replacement.

The core passes ECE R90 EU safety certification, utilizing high-strength gray cast iron substrate with carbonitriding treatment to form a dense, wear-resistant surface layer. The friction coefficient remains stable within the 0.38-0.42 range. The disc structure is optimized for rear brake coordination, achieving precise brake force distribution with the front brakes. It effectively suppresses thermal fade during high-speed emergency braking or prolonged downhill braking, ensuring linear and controllable braking performance. This aligns with both Infiniti's luxury performance standards and Nissan's family-oriented safety requirements.

Detailed craftsmanship balances durability and quiet operation: - Electrocoat rustproofing delivers over 500 hours of salt spray resistance against moisture corrosion. - Spiral ventilation groove design boosts heat dissipation efficiency by 30%. - Precise dynamic balancing calibration and backplate damping structure reduce brake squeal occurrence by 90%, matching OEM lifespan.

• 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