Stoptech 126.40057SL Disc Brake Rotor - Front Left

StopTech Sport Slotted Disc Brake Rotors Overview

The StopTech Sport Slotted Disc Brake Rotors (Part Number 126.40057SL) are engineered for Acura and Honda vehicles, including Civic, CR-V, CSX, ILX, and RSX models. Designed to enhance braking performance, these rotors feature a slotted surface and vented construction to improve heat dissipation and maintain consistent stopping power.

• Compatible with Acura and Honda Civic, CR-V, CSX, ILX, RSX
• Part Number: 126.40057SL
• Slotted surface for improved brake pad bite and debris removal
• Vented rotor design for enhanced cooling
• Coated hat finish to resist corrosion
• Floating disc mounting for better thermal expansion management
• Overall diameter: 300 mm (11.811 inches)
• Nominal thickness: 25.000 mm (0.984 inches)
• Discard thickness: 23.000 mm (0.906 inches)
• 5 lug holes with 12.5 mm diameter

StopTech Sport Slotted Disc Brake Rotors Product Line

The StopTech Sport Slotted Disc Brake Rotors line is designed to provide enhanced braking performance for street and light track use. The slotted surface improves pad bite and helps evacuate gases and debris, while the vented rotor design promotes efficient heat dissipation. This combination helps maintain consistent braking performance under demanding conditions. The coated hat finish offers corrosion resistance, extending rotor life and maintaining appearance.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and cooling. The rotor has an overall height of 47.1 mm (1.854 inches) and a center hole diameter of 64.2 mm (2.528 inches). It includes four miscellaneous holes and a floating disc mounting system to accommodate thermal expansion and reduce stress. The rotor weighs approximately 6.82 kg (15 lbs), balancing durability and performance. Note that this rotor does not include ABS tone rings or bearings.

Applications and Problem Solving

• Improves braking performance on Acura and Honda Civic, CR-V, CSX, ILX, and RSX models
• Reduces brake fade during aggressive driving or extended braking
• Helps prevent rotor warping through enhanced cooling
• Maintains consistent brake pad contact with slotted surface
• Resists corrosion with coated hat finish for longer service life

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Check rotor thickness and discard limits during replacement
• Use proper torque specifications for the 5 lug bolts (12.5 mm diameter)
• Inspect brake pads and hardware for wear when installing new rotors
• Follow manufacturer guidelines for bedding-in new rotors and pads

Quality Assurance and Warranty

StopTech Sport Slotted Disc Brake Rotors (Part Number 126.40057SL) are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated finish and vented design contribute to durability and consistent performance. Warranty information should be confirmed with the original equipment manufacturer or authorized distributor.