Stoptech 128.34108R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.34108R) are engineered for BMW models including the 220i, 228i, 320i, 328i, 330i, 428i, 430i, and X1 series. Designed to provide consistent braking performance, these rotors feature a vented and cross-drilled surface to enhance heat dissipation and reduce brake fade under demanding conditions.

• Cross-drilled surface for improved heat dissipation and water evacuation
• Vented rotor design to maintain optimal operating temperatures
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and reduced stress
• Compatible with 5-lug BMW models with 120mm bolt circle diameter
• Nominal thickness of 23.8 mm and discard thickness of 22.4 mm for precise wear limits
• Overall diameter of 312 mm and height of 73.6 mm for exact fitment

Detailed Product Description

The StopTech Sport Cross-Drilled Disc Brake Rotors are specifically designed for a range of BMW vehicles, including the 220i, 228i, 320i, 328i, 330i, 428i, 430i, and X1 models. These rotors feature a vented design with straight vanes that promote efficient airflow, helping to reduce heat buildup during braking. The cross-drilled surface improves water and gas evacuation, which enhances braking consistency in wet or high-performance driving conditions. The rotor hat is coated to protect against corrosion, ensuring durability over time. With a floating disc mounting system, the rotor can better accommodate thermal expansion and reduce stress on the braking components. The rotor measures 312 mm in outside diameter and 73.6 mm in overall height, with a 5-lug bolt pattern on a 120 mm circle, making it a precise replacement for compatible BMW models.

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to offer enhanced braking performance for sport and daily driving applications. This product line focuses on improving heat dissipation and reducing brake fade through cross-drilled surfaces and vented rotor construction. The rotors are engineered to meet or exceed OEM specifications, providing reliable stopping power and durability for BMW vehicles. The 128.34108R rotor is part of this line, delivering consistent performance for various BMW 2 Series, 3 Series, 4 Series, and X1 models.

Common Applications and Problem Solving

• Reduces brake fade during spirited or extended driving
• Improves braking performance in wet conditions by evacuating water
• Minimizes rotor warping caused by excessive heat buildup
• Prevents corrosion on rotor hats for longer service life
• Ensures proper fitment and alignment with floating disc mounting

Installation Notes and Tips

• Verify compatibility with your specific BMW model and year before installation
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Follow manufacturer torque specifications for mounting bolts
• Ensure rotor surface is clean and free of contaminants before installation
• Bleed brake system after installation to maintain proper brake feel

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The rotors undergo rigorous testing for material integrity and dimensional accuracy. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.