Stoptech 128.40055R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.40055R) are engineered for Acura and Honda vehicles, specifically designed to enhance braking performance on models like the Accord and TSX. These rotors provide reliable stopping power with a solid, cross-drilled design that supports consistent heat dissipation.

• Compatible with Acura Accord and Honda TSX models
• Part Number: 128.40055R
• Solid disc brake rotor with cross-drilled surface
• Coated hat finish for corrosion resistance
• Outside diameter: 10.236 inches (260 mm)
• Nominal thickness: 0.354 inches (9.000 mm)
• Discard thickness: 0.315 inches (8.000 mm)
• Floating disc mounting with 5 lug holes (0.500 inch diameter)
• Overall height: 1.921 inches (48.800 mm)
• Weight approximately 7 lbs (3.18 kgs)

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat dissipation and reduced brake fade. The cross-drilled surface pattern helps to evacuate gases and debris from the rotor surface, maintaining consistent pad contact and braking efficiency. The solid rotor design offers durability and strength, while the coated hat finish protects against corrosion, extending rotor life. This product line is suitable for drivers seeking reliable, performance-oriented rotors for their Acura Accord or Honda TSX.

Technical Specifications and Features

This rotor features a nominal thickness of 0.354 inches (9.000 mm) and a discard thickness of 0.315 inches (8.000 mm), ensuring a clear service life indicator for replacement. The rotor’s outside diameter measures 10.236 inches (260 mm), with an overall height of 1.921 inches (48.800 mm). It includes a floating disc mounting system with a 5-lug hole pattern, each hole measuring 0.500 inches (12.700 mm) in diameter, and a mounting bolt hole circle diameter of 4.500 inches (114.300 mm). The center hole diameter is 2.520 inches (64.000 mm). The rotor weighs approximately 7 lbs (3.18 kgs), balancing strength and weight for optimal performance.

Applications and Problem Solving

• Improves braking performance on Acura Accord and Honda TSX vehicles
• Reduces brake fade during extended or aggressive driving
• Helps dissipate heat efficiently to prevent rotor warping
• Minimizes gas and debris buildup on rotor surface
• Provides corrosion resistance with coated hat finish

Installation Notes and Tips

Ensure compatibility with your specific Acura Accord or Honda TSX model year before installation. Verify rotor thickness and discard limits during replacement to maintain safety standards. Use proper torque specifications for the 5-lug mounting bolts and inspect brake pads for wear when installing new rotors. The floating disc mounting requires correct alignment to avoid uneven wear or noise.

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish provides added protection against corrosion, contributing to longer rotor life. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed quality assurance to ensure reliable performance and durability.