Centric 121.45072 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.45072

The Centric C-TEK Standard Disc Brake Rotor 121.45072 is engineered for reliable braking performance on Mazda RX-8 vehicles. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and stable stopping power under various driving conditions.

• Compatible with Mazda RX-8 models
• Vented disc brake rotor for improved cooling
• Overall diameter of 11.85 inches (301 mm)
• Nominal thickness of 0.717 inches (18.2 mm) with discard thickness at 0.630 inches (16 mm)
• Floating disc mounting design with straight vane style
• 5 lug holes with 0.516 inch (13.1 mm) diameter
• Center hole diameter of 2.835 inches (72 mm)
• Weight approximately 12 lbs (5.45 kgs)
• ABS tone ring not included

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor, part number 121.45072, is specifically designed for the Mazda RX-8, ensuring precise fitment and optimal braking performance. The rotor features a vented design with straight vanes that facilitate efficient heat dissipation, reducing the risk of brake fade during extended use. Its smooth surface type provides consistent pad contact and braking feel. The floating disc mounting allows for slight movement to accommodate thermal expansion and improve rotor longevity. With a nominal thickness of 0.717 inches and a discard thickness of 0.630 inches, this rotor meets OEM specifications for safe replacement intervals.

Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda RX-8
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat management to reduce brake fade during aggressive driving
• Restores proper rotor thickness for consistent braking performance
• Suitable for vehicles without ABS tone ring requirements

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coatings or debris
• Verify compatibility with vehicle lug pattern: 5 lug holes, 0.516 inch diameter
• Check for proper alignment of the center hole diameter (2.835 inches) and mounting bolt hole circle diameter (4.5 inches)
• Torque lug nuts to manufacturer specifications to avoid rotor warping

Quality Assurance and Warranty

Centric's C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.45072 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Users should consult product documentation or Centric directly for warranty terms related to this rotor.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors product line by Centric focuses on delivering reliable, OEM-quality replacement rotors designed for everyday driving conditions. This line emphasizes precise fitment and consistent performance, making it suitable for vehicles like the Mazda RX-8 that require vented rotors with specific dimensions and mounting configurations. The C-TEK Standard rotors provide a balance of durability and cost-effectiveness without additional features such as ABS tone rings or specialized surface treatments.