Stoptech 227.40021R Disc Brake Rotor - Front Right

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 227.40021R) are engineered for Acura and Honda vehicles, including models like the Civic, Integra, and Fit. These rotors provide reliable braking performance with a vented design and a cross-drilled and slotted surface to enhance heat dissipation and reduce brake fade.

• Cross-drilled and slotted surface for improved cooling and debris removal
• Vented rotor design to maintain optimal operating temperatures
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with Acura and Honda models such as Civic, Integra, Fit, and more
• Nominal thickness of 0.827 inches (21.000 mm) with discard thickness at 0.748 inches (19.000 mm)
• Overall height of 1.756 inches (44.600 mm) and outside diameter of 10.315 inches (262.000 mm)
• Four stud/lug holes with a diameter of 0.496 inches (12.600 mm)

Product Line Details: StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to offer enhanced braking performance for street-driven vehicles. This product line features rotors with a combination of cross-drilled holes and slots to improve heat dissipation and maintain consistent brake pad contact. The vented rotor design further aids in cooling, making these rotors suitable for Acura and Honda models requiring reliable stopping power under varied driving conditions.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and heat management. The rotor’s nominal thickness is 0.827 inches (21.000 mm), with a discard thickness of 0.748 inches (19.000 mm), ensuring a clear maintenance threshold. The overall height measures 1.756 inches (44.600 mm), and the outside diameter is 10.315 inches (262.000 mm). It includes four mounting bolt holes arranged in a 100 mm (3.937 inches) bolt circle diameter and four additional miscellaneous holes. The rotor is designed with a floating disc mounting system to reduce stress and improve durability. Note that this rotor does not include ABS tone rings or bearings.

Compatible Vehicles and Applications

• Acura Integra
• Honda Civic and Civic del Sol
• Honda Fit
• Honda Insight
• Honda City
• Honda EL

Common Issues Addressed by This Rotor

• Brake fade caused by overheating during extended braking
• Uneven rotor wear and warping from poor heat dissipation
• Reduced braking performance due to debris buildup on rotor surface
• Vibration or noise from rotor distortion or uneven surface
• Inconsistent brake pad contact leading to decreased stopping power

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coatings or debris
• Verify compatibility with vehicle make and model, specifically Acura and Honda models listed
• Use proper torque specifications for mounting bolts to avoid rotor distortion
• Check brake pads for wear and replace if necessary during rotor installation

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The rotors undergo rigorous quality control to ensure durability and consistent performance. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or manufacturer for exact warranty terms.