Stoptech 127.45070R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.45070R is engineered for Mazda RX-8 owners seeking reliable braking performance. Designed with vented construction and a coated hat finish, this rotor balances heat dissipation and corrosion resistance for consistent stopping power.

• Cross-drilled and slotted surface for improved heat dissipation and debris removal
• Vented rotor design to reduce brake fade under heavy use
• Coated hat finish to protect against rust and corrosion
• Floating disc mounting for enhanced rotor alignment and performance
• Compatible with Mazda RX-8 models requiring 11.929 inch (303 mm) diameter rotors

Detailed Product Features and Specifications

This StopTech rotor features a nominal thickness of 0.945 inches (24.000 mm) and a discard thickness of 0.866 inches (22.000 mm), ensuring durability and longevity within specified wear limits. The overall height measures 1.772 inches (45.000 mm), with a center hole diameter of 2.835 inches (72.000 mm) and a mounting bolt hole circle diameter of 4.500 inches (114.300 mm). It includes five stud/lug holes with a diameter of 0.512 inches (13.000 mm), designed for precise fitment on the Mazda RX-8. The rotor weighs approximately 16.5 lbs (7.5 kgs), balancing strength and weight for optimal braking response.

About the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is engineered to provide enhanced braking performance through improved heat management and surface design. The combination of cross-drilled holes and slots helps to evacuate gases, dust, and water from the rotor surface, reducing brake fade and maintaining consistent pedal feel. This product line is suitable for drivers who require dependable braking under spirited driving conditions, including track days and aggressive street use.

Common Applications and Problem Solving

• Reduces brake fade during high-performance driving or heavy braking
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust buildup for cleaner braking components
• Helps prevent rotor warping through enhanced heat dissipation
• Restores braking performance on Mazda RX-8 vehicles with worn or damaged rotors

Installation Notes and Tips

Ensure compatibility with your Mazda RX-8 by verifying rotor dimensions and bolt pattern before installation. The floating disc mounting design requires proper torque specifications to maintain rotor alignment and performance. It is recommended to replace brake pads simultaneously to optimize braking efficiency. No bearings or ABS tone ring are included with this rotor, so retain existing components if applicable.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The coated hat finish offers corrosion resistance to extend rotor life. Please consult StopTech or authorized distributors for specific warranty details related to the 127.45070R rotor.