Stoptech 128.45085R Disc Brake Rotor - Rear Right

Overview of StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.45085R) are engineered for Mazda 6 vehicles requiring reliable braking performance. These solid rotors feature a cross-drilled surface designed to improve heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Mazda 6 models
• Part Number: 128.45085R
• Solid disc brake rotor with cross-drilled surface
• Coated hat finish for corrosion resistance
• Overall diameter: 277.5 mm (10.925 inches)
• Nominal thickness: 10.0 mm (0.394 inches)
• Discard thickness: 8.0 mm (0.315 inches)
• Floating disc mounting design
• 5 lug holes with 114.3 mm bolt circle diameter

Technical Specifications and Features

This StopTech rotor is a solid type with a cross-drilled surface that helps reduce brake fade by allowing heat and gases to escape more efficiently during braking. The coated hat finish provides added protection against rust and corrosion, extending the rotor's service life. With an overall height of 39.5 mm (1.555 inches) and a center hole diameter of 68.1 mm (2.681 inches), this rotor is designed to fit precisely on Mazda 6 brake assemblies. The floating disc mounting system enhances rotor alignment and reduces stress on the braking components.

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on delivering enhanced braking performance through advanced rotor surface designs. Cross-drilled rotors like the 128.45085R improve cooling and help maintain consistent brake pad contact, which is particularly beneficial for sporty driving or heavier braking demands. This product line balances durability with performance, making it suitable for Mazda 6 owners seeking reliable replacement rotors.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves heat dissipation to prevent rotor warping
• Minimizes brake dust buildup on rotor surface
• Restores braking performance on worn or damaged rotors
• Provides corrosion resistance with coated hat finish

Installation Notes and Tips

Ensure the rotor is compatible with your specific Mazda 6 model year before installation. Clean the hub surface thoroughly to prevent rotor runout. Use proper torque specifications on the 5 lug nuts with a 114.3 mm bolt circle diameter. Since bearings and ABS tone rings are not included, verify existing components are in good condition. It is recommended to replace brake pads simultaneously for optimal braking performance.

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit and function. The coated hat finish enhances durability against corrosion. While specific warranty details are not provided here, StopTech products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.