Centric 121.45069 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.45069

The Centric C-TEK Standard Disc Brake Rotor 121.45069 is engineered for reliable braking performance on select Mazda vehicles. Designed specifically for Mazda 3, Mazda 3 Sport, and Mazda 5 models, this vented disc brake rotor offers consistent stopping power and durability.

• Compatible with Mazda 3, Mazda 3 Sport, and Mazda 5
• Part number: 121.45069
• Vented rotor design for improved heat dissipation
• Nominal thickness of 0.984 inches (25.000 mm)
• Discard thickness at 0.906 inches (23.000 mm)
• Overall height of 1.913 inches (48.600 mm)
• Outside diameter of 11.811 inches (300.000 mm)
• Floating disc mounting style with straight vane design
• 5 lug holes with 0.539 inch (13.700 mm) diameter
• Smooth surface type for consistent pad contact

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM specifications. This product line focuses on providing reliable, direct replacement rotors with precise fitment and consistent performance. The 121.45069 rotor maintains strict quality standards and is designed to deliver dependable braking for Mazda vehicles requiring vented rotors with floating mounting and straight vane cooling.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to enhance heat dissipation during braking, reducing the risk of brake fade. The rotor’s nominal thickness is 0.984 inches (25.000 mm), with a discard thickness of 0.906 inches (23.000 mm), ensuring a clear service limit for safe operation. The overall height measures 1.913 inches (48.600 mm), and the outside diameter is 11.811 inches (300.000 mm), matching OEM dimensions for proper fitment on compatible Mazda models.

The rotor includes a floating disc mounting style, which allows for slight movement to reduce stress and improve braking smoothness. It has five lug holes with a diameter of 0.539 inches (13.700 mm) arranged on a 4.5 inch (114.300 mm) bolt circle diameter. The smooth surface type ensures consistent contact with brake pads, contributing to even wear and braking efficiency. This rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda 3, 3 Sport, and 5 models
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat management to reduce brake fade during extended use
• Restores proper rotor thickness for safe braking performance
• Eliminates noise and vibration related to damaged or out-of-spec rotors

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets discard limits
• Clean rotor surface and hub mounting area to prevent uneven contact
• Use proper torque specifications on lug nuts to avoid rotor warping
• Inspect brake pads and replace if worn to maintain optimal braking
• Check for compatibility with vehicle ABS system as this rotor does not include an ABS tone ring

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards, ensuring consistent quality and fitment. The 121.45069 rotor undergoes rigorous testing for durability and performance. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.