Centric 121.34130 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.34130

The Centric C-TEK Standard Disc Brake Rotor 121.34130 is engineered for reliable braking performance on BMW 528i and 528i xDrive models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and stable stopping power under normal driving conditions.

• Compatible with BMW 528i and 528i xDrive
• Part number: 121.34130
• Vented disc brake rotor design for improved cooling
• Nominal thickness: 0.945 inches (24.000 mm)
• Discard thickness: 0.882 inches (22.400 mm)
• Outside diameter: 12.992 inches (330.000 mm)
• Overall height: 2.606 inches (66.200 mm)
• Floating disc mounting type
• 5 stud/lug holes with 0.654 inch (16.600 mm) diameter
• Center hole diameter: 2.953 inches (75.000 mm)
• Mounting bolt hole circle diameter: 4.724 inches (120.000 mm)
• Weight approximately 18.55 lbs (8.43 kgs)
• ABS tone ring not included

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for standard braking applications. This product line focuses on providing reliable, smooth braking performance with vented rotors that help maintain optimal operating temperatures. The 121.34130 rotor fits within this line, delivering consistent thickness and durability suitable for BMW 528i and 528i xDrive vehicles.

Technical Description and Specifications

This Centric disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade. The smooth surface finish ensures even pad contact and wear. With a nominal thickness of 0.945 inches and a discard thickness of 0.882 inches, this rotor maintains structural integrity throughout its service life. The rotor’s outside diameter measures 12.992 inches, and it has an overall height of 2.606 inches, matching OEM dimensions for proper fitment. The floating disc mounting type allows for slight movement to accommodate thermal expansion and improve braking consistency. The rotor includes five stud holes with a diameter of 0.654 inches, arranged on a 4.724-inch bolt circle diameter, and a center hole diameter of 2.953 inches, ensuring precise alignment on the hub.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 528i and 528i xDrive
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking performance by restoring proper rotor thickness
• Helps reduce brake fade during normal driving conditions
• Suitable for routine maintenance and brake system overhauls

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coatings or debris
• Check compatibility with existing brake pads and calipers
• Torque lug nuts to manufacturer specifications for secure mounting
• Inspect hub surface for rust or damage prior to installation

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 121.34130 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 applicable to this rotor.