Centric 121.45034 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.45034

The Centric C-TEK Standard Disc Brake Rotor 121.45034 is engineered for reliable braking performance on Mazda Miata models. Designed to meet OEM specifications, this vented disc brake rotor ensures consistent stopping power and durability under normal driving conditions.

• Compatible with Mazda Miata vehicles
• Part number 121.45034 for precise identification
• Vented rotor design for improved heat dissipation
• Nominal thickness of 0.709 inches (18.000 mm)
• Discard thickness at 0.630 inches (16.000 mm)
• Outside diameter of 9.240 inches (234.700 mm)
• Overall height of 1.772 inches (45.000 mm)
• Floating disc mounting with straight vane style
• Smooth surface type for consistent pad contact
• Four stud/lug holes with 0.512 inch (13.000 mm) diameter

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 standards. This product line focuses on providing dependable braking components with precise fitment and consistent performance. The 121.45034 rotor features a vented design to help reduce heat buildup, which is critical for maintaining braking efficiency and rotor longevity on Mazda Miata vehicles.

Technical Specifications and Features

This disc brake rotor has a nominal thickness of 0.709 inches (18.000 mm) and a discard thickness of 0.630 inches (16.000 mm), ensuring it can be resurfaced within safe limits before replacement is necessary. The rotor’s outside diameter measures 9.240 inches (234.700 mm), with an overall height of 1.772 inches (45.000 mm). It includes a floating disc mounting system and straight vane style for effective heat dissipation. The smooth surface type promotes even brake pad wear and consistent braking response. The rotor is designed with four stud/lug holes, each 0.512 inches (13.000 mm) in diameter, and a mounting bolt hole circle diameter of 3.937 inches (100.000 mm).

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda Miata models
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking performance by restoring proper rotor thickness
• Helps reduce brake fade through vented rotor design
• Resolves noise issues related to rotor surface irregularities

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets the nominal thickness specifications. Clean the rotor surface to remove any protective coatings or debris before mounting. Use proper torque specifications on lug nuts to avoid rotor warping. Since this rotor does not include bearings or an ABS tone ring, verify compatibility with your vehicle’s existing components. The floating disc mounting requires correct alignment for optimal performance.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM quality standards, providing reliable performance and durability. While specific warranty details for part number 121.45034 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or manufacturer resources for exact warranty terms.