Stoptech 127.34063R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.34063R) are engineered for BMW M5 models requiring reliable and consistent braking performance. These vented rotors feature a slotted and drilled surface designed to improve heat dissipation and maintain optimal braking under demanding conditions.

• Cross-drilled and slotted rotor surface for enhanced cooling and debris removal
• Vented rotor design to reduce heat buildup during heavy braking
• Coated vented hat finish for corrosion resistance
• Floating disc mounting for improved rotor alignment and performance
• Compatible with BMW M5 models requiring 345 mm outside diameter rotors
• Nominal thickness of 32.000 mm with discard thickness at 30.400 mm
• Five lug holes with 120 mm bolt circle diameter
• Weight approximately 27.21 lbs (12.37 kgs)

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (127.34063R) is designed specifically for the BMW M5, providing a vented rotor with a 345 mm outside diameter and a nominal thickness of 32.000 mm. The rotor features a coated vented hat that helps resist corrosion and extends service life. The cross-drilled and slotted surface improves brake pad bite and helps evacuate gases, dust, and water, which can accumulate during aggressive driving or wet conditions. The floating disc mounting system enhances rotor alignment and reduces the risk of warping under thermal stress. This rotor includes five lug holes with a 120 mm bolt circle diameter, matching the BMW M5’s factory specifications.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to offer improved braking performance through enhanced heat dissipation and surface design. The combination of cross-drilled holes and precision slots helps maintain consistent brake pad contact and reduces the risk of brake fade. This product line is suitable for performance-oriented vehicles like the BMW M5, where reliable stopping power and rotor durability are critical.

Applications and Problem Solving

• Reduces brake fade during high-performance or spirited driving
• Improves heat dissipation to prevent rotor warping
• Enhances wet weather braking by evacuating water from the rotor surface
• Minimizes brake dust buildup for cleaner braking components
• Maintains consistent brake pad contact for improved pedal feel

Installation Notes and Tips

• Ensure compatibility with BMW M5 models requiring 345 mm rotors before installation
• Check rotor thickness and discard thickness to confirm replacement timing
• Use proper torque specifications for the five lug bolts on the 120 mm bolt circle
• Inspect brake pads and calipers during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding in new rotors and pads

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated vented hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.