Stoptech 127.39029R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.39029R) is engineered for Volvo models including the S60, S80, V70, and XC70. Designed to enhance braking performance, this vented rotor features a coated hat finish and a floating disc mounting system for improved heat dissipation and durability.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design with straight vane style to reduce brake fade
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with Volvo S60, S80, V70, and XC70 models
• Disc dimensions: 286 mm outside diameter, 26 mm nominal thickness
• 5 lug holes with 108 mm bolt circle diameter

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat management and consistent pad contact. The combination of cross-drilled holes and precision slots helps to evacuate gases and debris, reducing brake fade during aggressive driving. This product line is suitable for drivers seeking reliable stopping power and rotor durability on performance-oriented vehicles like the Volvo S60, S80, V70, and XC70.

Technical Specifications and Features

This disc brake rotor features a nominal thickness of 26.0 mm (1.024 inches) and a discard thickness of 23.0 mm (0.906 inches), ensuring a long service life before replacement is necessary. The rotor’s overall height measures 50.2 mm (1.976 inches), with a center hole diameter of 68.0 mm (2.677 inches) to fit precisely on the hub. The rotor weighs approximately 6.73 kg (14.8 lbs), balancing strength and weight for optimal performance. The vented design with straight vanes promotes effective cooling, while the floating disc mounting system accommodates thermal expansion to reduce warping.

Applications and Problem Solving

• Improves braking performance on Volvo S60, S80, V70, and XC70 models
• Reduces brake fade during high-temperature conditions
• Minimizes rotor warping and cracking through vented and floating design
• Enhances pad bite and braking consistency with slotted and drilled surface
• Resists corrosion with coated hat finish for longer rotor life

Installation Notes and Tips

• Ensure compatibility with Volvo S60, S80, V70, and XC70 before installation
• Check rotor discard thickness regularly to maintain safe braking performance
• Use proper torque specifications on the 5 lug bolts with 108 mm bolt circle diameter
• Inspect brake pads and hardware during rotor replacement for optimal results
• Follow manufacturer guidelines for bedding-in new rotors and pads

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 127.39029R rotor undergoes 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 product documentation or authorized sources for exact warranty terms.