Centric 121.40089 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.40089

The Centric C-TEK Standard Disc Brake Rotor 121.40089 is engineered for reliable braking performance on Honda Civic and Insight models. Designed as a solid rotor with a smooth surface, it provides consistent stopping power and durability for everyday driving conditions.

• Compatible with Honda Civic and Insight vehicles
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 10.236 inches (260 mm)
• Nominal thickness: 0.354 inches (9.000 mm)
• Discard thickness: 0.315 inches (8.000 mm)
• Overall height: 1.547 inches (39.300 mm)
• Floating disc mounting design
• 5 lug holes with 0.500 inch (12.700 mm) diameter
• Mounting bolt hole circle diameter: 4.500 inches (114.300 mm)
• Center hole diameter: 2.524 inches (64.100 mm)
• Weight approximately 7.35 lbs (3.32 kgs)
• ABS tone ring not included
• Bearings not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers OEM-quality replacement rotors designed to meet factory specifications. This product line focuses on providing solid rotors with smooth surfaces that ensure consistent brake pad contact and reliable performance. The 121.40089 rotor is part of this line, delivering precise fitment and durability for Honda Civic and Insight models requiring standard replacement rotors.

Detailed Product Description

This Centric disc brake rotor features a solid design with a smooth surface type, optimized for standard braking applications. The rotor’s outside diameter measures 10.236 inches (260 mm), with a nominal thickness of 0.354 inches (9.000 mm) and a discard thickness of 0.315 inches (8.000 mm), indicating when replacement is necessary. The overall height is 1.547 inches (39.300 mm), and it mounts using a floating disc mounting system. The rotor includes five lug holes sized at 0.500 inches (12.700 mm) diameter, arranged on a 4.500 inch (114.300 mm) bolt circle diameter, and a center hole diameter of 2.524 inches (64.100 mm). This rotor does not include an ABS tone ring or bearings, so those components must be sourced separately if required.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Honda Civic and Insight
• Addresses brake pulsation or vibration issues
• Restores proper rotor thickness for safe braking
• Eliminates brake noise caused by uneven rotor surfaces
• Improves brake pad contact and stopping consistency

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface to remove any protective coatings or debris
• Check compatibility with vehicle’s lug pattern and mounting specifications
• Ensure proper torque on lug nuts to manufacturer specifications
• Inspect brake pads and replace if worn to optimize braking performance

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.40089 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult Centric’s official warranty policy or product documentation for precise coverage information.