Centric 121.34058 Disc Brake Rotor - Front Left

Overview of Centric C-TEK Standard Disc Brake Rotor 121.34058

The Centric C-TEK Standard Disc Brake Rotor 121.34058 is engineered for precise braking performance on BMW M3 models. Designed as a vented rotor with a smooth surface, it offers reliable heat dissipation and consistent stopping power under various driving conditions.

• Compatible with BMW M3 vehicles
• Part number 121.34058 for exact fitment
• Vented disc brake rotor design for improved cooling
• Overall diameter of 12.795 inches (325 mm)
• Nominal thickness of 1.102 inches (28 mm) with discard thickness at 1.039 inches (26.4 mm)
• Floating disc mounting with curved vane style for enhanced airflow
• 5 stud/lug holes with 0.583 inch (14.8 mm) diameter
• Center hole diameter of 3.110 inches (79 mm)
• Weight approximately 19.04 lbs (8.65 kgs)
• ABS tone ring not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric focuses on delivering reliable, OEM-quality replacement rotors that meet or exceed factory specifications. This product line emphasizes durability and consistent braking performance, making it suitable for daily driving and moderate performance applications. The 121.34058 rotor maintains the balance between structural integrity and thermal management through its vented design and curved vane style, which helps reduce brake fade on BMW M3 vehicles.

Detailed Product Description

This Centric disc brake rotor features a vented design with curved vanes that promote efficient heat dissipation, reducing the risk of warping during heavy braking. The smooth surface finish ensures even pad contact and wear, contributing to consistent braking feel. With a nominal thickness of 1.102 inches (28 mm) and a discard thickness of 1.039 inches (26.4 mm), this rotor provides a clear service life indicator to maintain safety standards. The floating disc mounting and precise bolt hole pattern (5 lug holes, 0.583 inch diameter) ensure proper alignment and fitment on BMW M3 models. The rotor’s overall height of 2.106 inches (53.5 mm) and outside diameter of 12.795 inches (325 mm) match OEM specifications for direct replacement.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW M3 vehicles
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat dissipation to reduce brake fade during spirited driving
• Restores proper rotor thickness for safe braking performance
• Eliminates noise and vibration related to damaged or uneven rotors

Installation Notes and Tips

• Verify compatibility with BMW M3 model year before installation
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Clean rotor surface with brake cleaner before installation to remove any protective coatings
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check for proper rotor runout after installation to prevent brake pulsation

Quality Assurance and Warranty

Centric provides rotors manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The C-TEK Standard Disc Brake Rotors line undergoes rigorous quality control to maintain consistent thickness and balance. While specific warranty details for part number 121.34058 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms.