Centric 121.65115 Disc Brake Rotor - Rear

Reliable Centric CTEK Standard Disc Brake Rotor Overview

The Centric 121.65115 disc brake rotor is engineered to provide consistent braking performance for vehicles requiring vented rotors with precise dimensions. Designed for applications needing a 10-bolt mounting pattern and smooth surface finish, this rotor supports safe and effective stopping power.

• Part Number: 121.65115
• Brand Line: CTEK Standard Disc Brake Rotors
• Vented disc brake rotor with smooth surface
• Outside diameter: 390 mm (15.354 inches)
• Nominal thickness: 39.000 mm (1.535 inches)
• Discard thickness: 37.400 mm (1.472 inches)
• Overall height: 124.000 mm (4.882 inches)
• Mounting bolt hole quantity: 10
• Mounting bolt hole diameter: 12.860 mm (0.506 inches)
• Center hole diameter: 139.400 mm (5.488 inches)
• Mounting bolt hole circle diameter: 163.100 mm (6.421 inches)
• Disc mounted behind the hub
• Weight: 19.610 kg (43.150 lbs)
• ABS tone ring: Not included

CTEK Standard Disc Brake Rotors Product Line Details

The CTEK Standard Disc Brake Rotors line by Centric focuses on delivering rotors that meet OEM specifications for standard braking applications. These rotors are designed with vented construction to improve heat dissipation and maintain braking efficiency under normal driving conditions. The smooth surface finish ensures consistent pad contact and wear, making them suitable for a variety of vehicle makes and models requiring precise fitment and reliable performance.

Technical Specifications and Features

This vented rotor features a nominal thickness of 39.000 mm and a discard thickness of 37.400 mm, ensuring it meets safety standards for rotor wear limits. The 10-bolt mounting pattern with a 163.100 mm bolt circle diameter and 12.860 mm bolt hole diameter provides secure attachment behind the hub. The rotor’s overall height of 124.000 mm and center hole diameter of 139.400 mm are designed to match specific vehicle hub assemblies. The absence of an ABS tone ring indicates compatibility with vehicles that do not require this feature.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below discard limits to restore braking safety
• Improving heat dissipation in vehicles experiencing brake fade
• Ensuring proper fitment for vehicles with 10-bolt mounting patterns
• Resolving uneven pad wear due to rotor surface irregularities

Installation Notes and Tips

Ensure the rotor mounting surface and hub are clean and free of debris before installation. Verify the rotor thickness is within nominal specifications and above discard thickness limits. Use proper torque specifications for the 10 mounting bolts to avoid rotor distortion. Since this rotor mounts behind the hub, confirm compatibility with your vehicle’s brake assembly. No ABS tone ring is included, so verify if your vehicle requires a separate ABS sensor component.

Quality Assurance and Warranty

Centric’s CTEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for durability and performance. Each rotor undergoes quality inspections to ensure dimensional accuracy and material integrity. While specific warranty details are not provided here, Centric typically offers coverage against manufacturing defects. Consult product documentation or Centric directly for warranty terms related to part number 121.65115.