Centric 121.50021 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.50021

The Centric C-TEK Standard Disc Brake Rotor 121.50021 is engineered for reliable braking performance on Kia Borrego vehicles. Designed as a solid rotor with a smooth surface, this part ensures consistent stopping power and durability under normal driving conditions.

• Compatible with Kia Borrego models
• Part number: 121.50021
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 12.756 inches (324.0 mm)
• Nominal thickness: 0.508 inches (12.9 mm)
• Discard thickness: 0.449 inches (11.4 mm)
• Overall height: 2.591 inches (65.8 mm)
• Center hole diameter: 2.720 inches (69.1 mm)
• Mounting bolt hole circle diameter: 4.5 inches (114.3 mm)
• 6 stud/lug holes, each 0.492 inches (12.5 mm) in diameter
• Weight approximately 16.39 lbs (7.45 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 offers solid rotors designed for dependable, everyday braking applications. These rotors feature a smooth surface type and are manufactured to meet or exceed OEM specifications. The 121.50021 rotor is part of this line, providing a direct replacement solution for Kia Borrego vehicles requiring a solid rotor design without ABS tone ring integration.

Detailed Product Description

This Centric disc brake rotor is a solid type rotor with a smooth surface, optimized for consistent brake pad contact and heat dissipation. The rotor measures 12.756 inches in outside diameter and has a nominal thickness of 0.508 inches, with a discard thickness of 0.449 inches, ensuring it meets wear limits for safe operation. The overall height of 2.591 inches and a center hole diameter of 2.720 inches allow for precise fitment on the Kia Borrego hub assembly. The rotor mounts using six lug holes arranged on a 4.5-inch bolt circle diameter, matching OEM specifications for secure installation. This rotor does not include an ABS tone ring or bearings, so it is intended for vehicles without ABS sensor integration on the rotor itself.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Kia Borrego
• Resolves brake pulsation caused by uneven rotor surfaces
• Addresses rotor thickness below manufacturer discard limits
• Improves braking consistency and pedal feel
• Eliminates noise and vibration from damaged rotors

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it is above discard thickness of 0.449 inches
• Clean rotor surface and hub mounting area to prevent uneven contact
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Inspect brake pads and replace if worn to ensure optimal rotor performance

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes strict quality control to ensure durability and performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric's official warranty policy for complete terms.