Centric 121.33120 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.33120

The Centric C-TEK Standard Disc Brake Rotor 121.33120 is engineered for reliable braking performance on the Audi TT Quattro. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and stable stopping power under various driving conditions.

• Compatible with Audi TT Quattro models
• Part number: 121.33120
• Vented disc brake rotor with pillar vane style for enhanced cooling
• Outside diameter of 340 mm (13.386 inches)
• Nominal thickness of 30 mm (1.181 inches) and discard thickness of 28 mm (1.102 inches)
• Floating disc mounting design
• 5 lug holes with a bolt circle diameter of 112 mm (4.409 inches)
• Center hole diameter of 65 mm (2.559 inches)
• Weight approximately 22.7 lbs (10.32 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 focuses on delivering OEM-equivalent replacement rotors that meet factory specifications. This product line emphasizes precise fitment and consistent performance, making it suitable for vehicles like the Audi TT Quattro that require reliable braking components. The 121.33120 rotor maintains the original equipment’s vented design and smooth surface finish to ensure proper brake pad contact and heat management.

Technical Description and Specifications

This Centric disc brake rotor features a vented design with pillar-style vanes that promote efficient airflow to reduce heat buildup during braking. The rotor’s overall height measures 49.6 mm (1.953 inches), supporting proper caliper clearance and fitment. With a nominal thickness of 30 mm and a discard thickness of 28 mm, this rotor provides a clear service life indicator to maintain safe braking performance. The floating disc mounting style allows for slight movement to accommodate thermal expansion and reduce stress on the braking system. The rotor includes five lug holes with a 112 mm bolt circle diameter, matching the Audi TT Quattro’s wheel hub specifications. The smooth surface type ensures even pad wear and consistent braking feel.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi TT Quattro
• Addresses brake pulsation caused by uneven rotor surfaces
• Restores braking efficiency lost due to rotor thickness below discard limits
• Improves heat dissipation to reduce brake fade during extended use
• Compatible with vehicles requiring vented rotors with pillar vane design

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match the Audi TT Quattro before installation
• Ensure the rotor surface is clean and free of contaminants prior to mounting
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check caliper and pad condition during rotor replacement for optimal performance
• ABS tone ring is not included; confirm ABS sensor compatibility if applicable

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. Each rotor undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. It is recommended to consult the product packaging or Centric’s official documentation for exact warranty terms.