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.

Overview

This product is a rear brake disc engineered specifically for INFINITI and NISSAN vehicles, carrying ECE R90 certification for compliance with European safety standards. The disc features GG15HC high‑carbon cast iron construction with ventilated design for effective heat dissipation, and is available with multiple surface finishes and performance configurations including drilling and slotting. Designed for rear‑axle applications where braking loads are lower than the front but still significant—particularly in weight‑transfer dynamics—this disc delivers consistent, fade‑resistant braking performance. The product is complemented by matching ceramic brake pad options from Winhere's brake pad manufacturing line, enabling a complete, system‑matched rear brake replacement solution for INFINITI and NISSAN owners.

Understanding the Rear Axle – A Different Role from the Front

Braking Force Distribution

• During braking, weight shifts forward, meaning the front axle handles the majority of stopping force—typically 60‑80%.

• Rear brakes contribute a smaller proportion of total braking effort, but their role is still essential.

• The rear axle provides stability during braking, preventing the vehicle from "fishtailing" or losing directional control.

Thermal Load Differences

• Rear discs operate at lower temperatures than front discs due to the reduced braking workload.

• However, in vehicles with rear‑biased weight distribution—or during heavy braking, towing, or downhill driving—rear disc temperatures can still rise significantly.

Wear Patterns

• Rear discs typically wear more slowly than front discs.

• However, they are still subject to corrosion, surface glazing, and thermal stress over time.

• Rear discs often last through two or three front disc replacements before needing replacement themselves.

Why Quality Rear Discs Matter

• A high‑quality rear disc ensures consistent braking balance between front and rear axles.

• It reduces the risk of premature rear pad wear, noise, and pedal pulsation.

• For INFINITI and NISSAN vehicles—which are engineered for smooth, progressive braking—a quality rear disc maintains the original driving character.

GG15HC High‑Carbon Cast Iron – Material Advantage for Rear Discs

What GG15HC Provides

• Improved thermal conductivity – Heat generated during braking is conducted away from the friction surface more efficiently.

• Reduced thermal expansion – The material expands less under high temperatures, maintaining disc shape and reducing warping risk.

• Enhanced damping properties – High‑carbon iron absorbs vibration more effectively, contributing to quieter braking.

• Better wear resistance – Consistent friction characteristics and reduced disc wear over time.

Why This Matters for Rear Discs

• Although rear discs operate at lower temperatures than front discs, they still experience thermal cycling—heating and cooling during every braking event.

• GG15HC's reduced thermal expansion minimises the risk of disc distortion over time.

• The enhanced damping properties contribute to the quiet, refined braking experience that INFINITI owners expect and NISSAN drivers appreciate.

Comparison with Standard Cast Iron

• Standard grey cast iron is adequate for basic rear‑axle applications but may develop surface glazing or corrosion more readily.

• GG15HC offers superior resistance to these degradation mechanisms, extending disc life and maintaining consistent performance.

Ventilated Construction – Effective Cooling for Rear Axle Applications

• The ventilated design features internal cooling vanes between the two friction faces.

• As the disc rotates, these vanes draw air from the centre and expel it outward, dissipating heat.

• While rear discs generate less heat than front discs, ventilation still provides meaningful benefits:

• Reduced fade risk during sustained braking events such as downhill driving or towing.

• More consistent pedal feel by maintaining stable disc temperatures.

• Extended pad and disc life through reduced thermal stress.

Cooling Brake Disc – The Thermal Management Focus

• The presence of "cooling brake disc" as a keyword reflects the importance of thermal management in this product.

• The combination of GG15HC material and ventilated design provides a comprehensive thermal management solution.

• For drivers who frequently encounter hilly terrain, carry heavy loads, or drive in hot climates, this cooling capability provides meaningful safety and performance benefits.

Performance Design Options

Drilled Configuration

• Holes across the friction surface enhance heat dissipation and water evacuation.

• Reduces gas build‑up between pad and disc.

• Provides improved wet‑weather braking response.

• Adds a sporty, performance appearance.

Slotted Configuration

• Grooves clean the pad surface, removing dust and debris.

• Prevents pad glazing, maintaining consistent friction.

• Improves initial bite for more responsive braking.

Drilled + Slotted Combination

• Combines cooling, cleaning, and bite for maximum performance.

• Recommended for drivers who use their vehicles in varied and demanding conditions.

Ventilated (Standard)

• All variants include the ventilated internal vane structure as standard.

• The ventilation is integral to the disc's thermal management capability.

Surface Protection Options

Oiled

• Light rust‑preventive oil film applied during production for protection during storage and transit.

• Easily cleaned before installation with brake cleaner or a suitable solvent.

Painted

• Durable paint applied to the hub and outer edges, providing long‑term corrosion resistance.

• Maintains a clean, professional appearance over the disc's service life.

• Recommended for regions with high humidity, coastal environments, or winter road salt exposure.

Coated

• Advanced anti‑corrosion coating (zinc or geometric) offering superior long‑term protection.

• The coating gradually wears from the friction area during normal braking while the rest of the disc remains permanently shielded.

• The highest level of corrosion protection for demanding environments.

System‑Matched Brake Pads – The Complete Rear Brake Solution

The Disc‑Pad Relationship

• Brake discs and pads are designed to work together as a system.

• The disc provides the friction surface; the pad provides the friction material.

• Performance, noise, and wear characteristics depend on both components working in harmony.

Winhere's Brake Pad Capability

• Winhere is both a brake disc manufacturer and a brake pad manufacturer.

• This enables the supply of matched disc‑pad sets for complete rear brake replacement.

• The "ceramic brake pad" keyword reflects the availability of high‑quality ceramic pads that pair perfectly with this disc.

Ceramic Brake Pad Benefits

• Low dust generation – Keeps wheels cleaner, particularly important for INFINITI's premium aesthetic.

• Quiet operation – Ceramic material naturally dampens vibration, preserving the refined cabin environment.

• Gentle on discs – Ceramic pads cause less disc wear than metallic formulations.

• Smooth, linear pedal feel – Progressive braking response that matches INFINITI and NISSAN engineering philosophy.

Why a Matched Set Matters

• Ensures optimal performance – the pad material is selected to work with the disc material.

• Reduces the risk of noise, vibration, and harshness.

• Simplifies purchasing – one order covers both components.

• Provides confidence that both parts are engineered to the same quality standard.

The INFINITI Difference – Premium Expectations

• INFINITI is NISSAN's luxury division, with customers who expect refined, quiet, and reliable performance.

• Brake noise and vibration are less tolerated in a premium vehicle.

• The GG15HC material's damping properties and the ventilated design contribute to the quiet, smooth braking that INFINITI owners expect.

• The availability of ceramic pads further enhances the premium driving experience.

NISSAN Drivers – Reliability and Value

• NISSAN vehicles are engineered for reliability, practicality, and value.

• This disc provides the durability and consistent performance that NISSAN drivers depend on.

• The ECE R90 certification provides safety assurance.

• The multiple material and finish options allow selection based on driving needs and climate conditions.

Who Is This Product For?

INFINITI Owners

• For drivers who want to maintain the premium braking performance of their luxury vehicle.

• For those who value quiet, refined braking with minimal dust.

• For owners who want a quality replacement that meets or exceeds original equipment standards.

NISSAN Owners

• For daily drivers who need a reliable, durable rear disc replacement.

• For those who want a quality alternative to dealer‑priced parts.

• For owners who appreciate ECE R90 safety certification and OE‑grade quality.

Workshops Specialising in Japanese Vehicles

• For service centres that regularly work on INFINITI and NISSAN vehicles.

• The broad coverage across both brands simplifies inventory management.

• The disc‑pad matched sets allow offering a complete rear brake solution.

Fleet Operators

• For businesses operating NISSAN vehicles in their fleets.

• The durable construction and consistent performance reduce maintenance frequency.

• The system‑matched disc‑pad sets simplify parts ordering and reduce inventory complexity.

ECE R90 Certification – Safety Compliance

• ECE R90 certification confirms that this disc meets European safety standards for replacement brake components.

• The certification verifies that the disc delivers braking performance equivalent to the original equipment.

• Fade resistance, stopping distance, and structural integrity are all verified through the certification process.

• For INFINITI and NISSAN owners, this provides confidence that the replacement disc meets recognised safety requirements.

Quality Assurance and Manufacturing Standards

• Manufactured to INFINITI and NISSAN OEM specifications for rear‑axle fitment.

• GG15HC material composition verified through metallurgical testing.

• ECE R90 certified – safety performance verified.

• Dimensional accuracy – run‑out and thickness variation controlled to tight tolerances.

• Ventilation vane structure checked for casting integrity.

• Surface finish controlled for proper pad bedding and consistent friction.

• Corrosion resistance of surface finishes validated through standardised testing.

Fitment and Compatibility

• Specifically designed for the rear axle of INFINITI and NISSAN vehicles.

• Suitable for a wide range of models – consult the catalogue for specific fitment.

• Direct replacement – no modifications required.

• Available with or without drilling, slotting, or combination configurations.

• Ceramic brake pads available as a matched system component.

• Consult the product catalogue or contact Winhere with vehicle details (model, year, axle position) for specific fitment confirmation.

• 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