Centric 121.50030 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.50030

The Centric C-TEK Standard Disc Brake Rotor 121.50030 is engineered for reliable braking performance on Hyundai Accent and Kia Rio models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Hyundai Accent and Kia Rio vehicles
• Vented disc brake rotor design for improved cooling
• Overall diameter of 11.024 inches (280 mm)
• Nominal thickness of 0.866 inches (22.000 mm)
• Discard thickness at 0.764 inches (19.400 mm)
• Floating disc mounting style
• Smooth surface type for standard braking applications
• Four stud/lug holes with 0.492 inch (12.5 mm) diameter
• Center hole diameter of 2.441 inches (62 mm)
• Weight approximately 13.4 lbs (6.08 kgs)

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric focuses on providing OEM-quality replacement rotors that meet or exceed original equipment specifications. This product line emphasizes consistent performance and durability, making it suitable for standard driving conditions. The 121.50030 rotor maintains the precise dimensions and vented design required for proper fitment and heat management on Hyundai Accent and Kia Rio models.

Technical Specifications and Features

This vented disc brake rotor features a smooth surface type that supports effective braking without additional surface treatments. The rotor’s overall height measures 1.732 inches (44.000 mm), with a nominal thickness of 0.866 inches (22.000 mm) and a discard thickness of 0.764 inches (19.400 mm), ensuring safe replacement intervals. The floating disc mounting style allows for slight movement to reduce stress and improve rotor longevity. The rotor includes four stud/lug holes sized at 0.492 inches (12.5 mm) and a mounting bolt hole circle diameter of 3.937 inches (100 mm), matching factory specifications for secure installation.

Common Applications and Problem Solving

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

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 0.764 inches (19.400 mm) to maintain safety standards. Use proper torque specifications on the mounting bolts to avoid rotor warping. This rotor does not include bearings or an ABS tone ring, so confirm compatibility with your vehicle’s braking system. It is recommended to replace brake pads simultaneously for optimal braking performance.

Quality Assurance and Warranty

Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality control standards, ensuring consistent dimensions and material integrity. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.