Stoptech 127.45071L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.45071L is engineered for Mazda RX-8 owners seeking reliable braking performance. Designed with precision, this vented rotor enhances heat dissipation and braking consistency under demanding conditions.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design with straight vane style for optimal cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with Mazda RX-8 models requiring 12.717 inch (323 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 a balance between durability and performance. The overall height measures 1.768 inches (44.900 mm), with a center hole diameter of 2.827 inches (71.800 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 0.508 inches (12.900 mm), designed to fit the Mazda RX-8 precisely. The rotor weighs approximately 18 lbs (8.18 kgs), providing a solid yet manageable component for your braking system.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is developed to offer enhanced braking performance through improved heat management and debris removal. The combination of cross-drilled holes and precision slots helps maintain consistent pad contact and reduces brake fade during spirited driving or track use. This product line is suitable for drivers who require dependable stopping power without compromising rotor longevity.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake pad glazing and uneven wear
• Helps prevent rotor warping under high-stress conditions
• Enhances overall braking response and pedal feel for Mazda RX-8 vehicles

Installation Notes and Tips

Ensure the rotor is installed on compatible Mazda RX-8 models matching the specified dimensions. Verify that the mounting bolt hole circle diameter and stud/lug hole pattern align correctly. It is recommended to replace brake pads simultaneously to optimize braking performance. Proper torque specifications should be followed during installation to avoid rotor distortion. This rotor does not include bearings or an ABS tone ring, so confirm compatibility with your vehicle’s braking system.

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The coated hat finish provides corrosion resistance to extend service life. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.