Stoptech 127.33123R 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 127.33123R) are engineered for Audi vehicles including the A4, A4 Quattro, A5, A5 Quattro, and Q5 models. These rotors provide enhanced braking performance through a vented, slotted, and cross-drilled design that improves heat dissipation and reduces brake fade.

• Cross-drilled and slotted surface for improved cooling and debris removal
• Vented rotor design with pillar-style vanes for efficient heat dissipation
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with 5-lug wheel setups, 112 mm bolt circle diameter
• Nominal thickness of 29.8 mm and discard thickness of 28.0 mm
• Outside diameter of 320 mm and overall height of 52.2 mm

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to enhance braking performance for street and light track use. Featuring a combination of cross-drilled holes and precision slots, these rotors help maintain consistent brake pad contact and improve water and gas evacuation. The vented design with pillar-style vanes promotes effective cooling, reducing the risk of brake fade during demanding driving conditions. This product line balances durability and performance, making it suitable for Audi A4, A5, and Q5 models requiring reliable stopping power.

Detailed Product Description

This disc brake rotor is constructed with a vented design that incorporates pillar-style vanes to optimize airflow and heat dissipation. The cross-drilled and slotted surface enhances braking efficiency by allowing gases and debris to escape, which helps maintain consistent pad friction. The rotor features a coated hat finish that protects against corrosion, extending the rotor's service life. With a nominal thickness of 29.8 mm and a discard thickness of 28.0 mm, this rotor meets strict specifications for safe and effective braking. The floating disc mounting design accommodates thermal expansion, reducing the risk of warping under heavy braking. The rotor's dimensions include a 320 mm outside diameter, 52.2 mm overall height, and a center hole diameter of 68 mm, ensuring proper fitment on compatible Audi models.

Common Applications and Problem Solving

• Improves brake cooling to reduce fade during spirited driving or towing
• Helps prevent brake pad glazing by maintaining clean pad surfaces
• Reduces rotor warping caused by thermal stress
• Enhances braking consistency in wet or dusty conditions
• Addresses corrosion issues with coated hat finish for longer rotor life

Installation Notes and Tips

• Ensure compatibility with Audi A4, A4 Quattro, A5, A5 Quattro, and Q5 models before installation
• Check rotor thickness and discard limits to confirm replacement timing
• Use proper torque specifications for the 5-lug, 112 mm bolt circle mounting
• Inspect brake pads and hardware during rotor replacement for optimal performance
• 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 standards for fit, form, and function. The rotors undergo 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. Refer to StopTech or authorized distributors for complete warranty information.