Stoptech 128.34060L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.34060L is engineered for BMW X5 models requiring reliable and consistent braking performance. Designed with vented construction and cross-drilled surface, this rotor supports enhanced heat dissipation and improved brake pad bite under demanding conditions.

• Compatible with BMW X5 vehicles
• Part number: 128.34060L
• Cross-drilled (X drilled) vented rotor design
• Coated hat finish for corrosion resistance
• Floating disc mounting for thermal expansion
• Nominal thickness: 1.417 inches (36.000 mm)
• Discard thickness: 1.354 inches (34.400 mm)
• Outside diameter: 14.016 inches (356.000 mm)
• Overall height: 2.453 inches (62.300 mm)
• 5 lug holes with 0.654 inch (16.600 mm) diameter
• Weight approximately 31.5 lbs (14.32 kgs)

Product Line Details: 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 allows for better gas and dust evacuation, while the vented rotor design promotes airflow to maintain optimal operating temperatures. This product line is suitable for drivers seeking a balance between street and light track use, offering consistent braking response and durability.

Technical Description and Specifications

This disc brake rotor features a vented design with straight vanes to optimize cooling efficiency. The rotor’s cross-drilled surface improves pad bite and helps prevent glazing by allowing gases and debris to escape during braking. The coated hat finish protects against corrosion, extending rotor life. The floating disc mounting system accommodates thermal expansion, reducing the risk of warping under high heat conditions. With a nominal thickness of 1.417 inches and a discard thickness of 1.354 inches, this rotor maintains structural integrity throughout its service life. The rotor measures 14.016 inches in outside diameter and 2.453 inches in overall height, fitting BMW X5 models with a 5-lug bolt pattern and 120 mm bolt circle diameter.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or towing
• Improves heat dissipation to prevent rotor warping
• Enhances braking response and pad bite on BMW X5 vehicles
• Minimizes brake dust and gas buildup on rotor surface
• Provides corrosion resistance with coated hat finish

Installation Notes and Tips

Ensure compatibility with your BMW X5 by verifying lug pattern and rotor dimensions before installation. Clean the rotor surface with brake cleaner to remove any protective coatings or residues. Use proper torque specifications for mounting bolts to avoid rotor distortion. It is recommended to replace brake pads simultaneously to ensure optimal braking performance. Check for ABS sensor clearance as this rotor does not include an ABS tone ring.

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 finish and vented design contribute to long service life and consistent braking 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 manufacturer resources for exact warranty terms.