Centric 121.45078 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.45078

The Centric C-TEK Standard Disc Brake Rotor 121.45078 is engineered for reliable braking performance on Mazda 3 models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Mazda 3 vehicles
• Part number 121.45078 for precise identification
• Vented disc brake rotor design for improved cooling
• Overall diameter of 12.598 inches (320 mm)
• Nominal thickness of 0.984 inches (25 mm) with discard thickness at 0.906 inches (23 mm)
• Floating disc mounting style with straight vane design
• 5 lug holes with a bolt circle diameter of 4.5 inches (114.3 mm)
• Center hole diameter of 2.835 inches (72 mm)
• Weight approximately 21 lbs (9.56 kgs)
• ABS tone ring not included

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor 121.45078 is a vented rotor designed to provide effective heat dissipation during braking, reducing the risk of brake fade. The smooth surface finish ensures consistent pad contact and braking performance. With a nominal thickness of 0.984 inches (25 mm) and a discard thickness of 0.906 inches (23 mm), this rotor meets the specifications required for safe and reliable operation. The floating disc mounting style combined with straight vane design enhances airflow and cooling efficiency. The rotor features a 5-lug hole pattern with a 4.5-inch (114.3 mm) bolt circle diameter, making it compatible with Mazda 3 models requiring this fitment. The overall diameter of 12.598 inches (320 mm) and center hole diameter of 2.835 inches (72 mm) ensure proper fitment and alignment.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to meet or exceed OEM specifications for standard replacement rotors. This product line focuses on delivering reliable braking performance with quality materials and precise manufacturing tolerances. The 121.45078 rotor is part of this line, offering a vented design and smooth surface to maintain consistent braking feel and durability for Mazda 3 vehicles.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Mazda 3
• Resolves brake pulsation caused by uneven rotor surfaces
• Addresses reduced braking efficiency due to rotor thinning
• Improves heat dissipation to prevent brake fade during extended use
• Restores proper rotor thickness for safe braking performance

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match your Mazda 3 before installation
• Ensure the rotor surface is clean and free of contaminants prior to mounting
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Check for proper rotor runout after installation to prevent vibration

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 121.45078 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is produced with precision engineering to provide reliable braking for Mazda 3 vehicles.