Stoptech 227.40021L Disc Brake Rotor - Front Left

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 227.40021L) are engineered for Acura and Honda vehicles, including models like the Civic, Integra, and Fit. Designed to enhance braking performance, these rotors feature a vented, cross-drilled, and slotted surface for improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design to reduce brake fade under heavy use
• Floating disc mounting for better rotor alignment and reduced stress
• Compatible with Acura and Honda models including Civic, Civic del Sol, EL, Fit, Insight, and Integra
• Nominal thickness of 0.827 inches (21.000 mm) with discard thickness at 0.748 inches (19.000 mm)
• Overall diameter of 10.315 inches (262.000 mm) and overall height of 1.756 inches (44.600 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 provide a balance between everyday driving and enhanced braking performance. This product line focuses on improving rotor cooling and brake pad bite through its cross-drilled and slotted surface, which helps maintain consistent braking under various driving conditions. The vented rotor design further aids in heat management, making it suitable for Acura and Honda vehicles requiring reliable and durable braking components.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and cooling. The rotor’s floating disc mounting system allows for slight movement, reducing stress and improving rotor longevity. With a center hole diameter of 2.524 inches (64.100 mm) and a mounting bolt hole circle diameter of 100.000 mm (3.937 inches), it fits securely on compatible Acura and Honda models. Weighing approximately 12 lbs (5.45 kgs), it balances durability with manageable weight for effective braking performance.

Applications and Problem Solving

• Improves braking performance on Acura and Honda vehicles such as Civic, Civic del Sol, EL, Fit, Insight, and Integra
• Reduces brake fade during extended or aggressive driving
• Helps prevent rotor warping caused by excessive heat buildup
• Enhances pad bite and braking response with slotted and drilled surface
• Maintains consistent braking under varied driving conditions

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.748 inches / 19.000 mm) before installation
• Verify compatibility with vehicle make and model, specifically Acura and Honda models listed
• Use proper torque specifications for mounting bolts on the 100 mm bolt circle diameter
• Inspect brake pads and calipers during installation for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors and pads

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided here, StopTech products typically come with a limited warranty covering defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.