Stoptech 128.34094L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.34094L is engineered for Mini Cooper vehicles requiring reliable braking performance. Designed with precision, this solid rotor features a cross-drilled surface to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Mini Cooper models
• Part number: 128.34094L
• Solid disc brake rotor with cross-drilled surface
• Coated hat finish for corrosion resistance
• Overall diameter: 10.189 inches (258.8 mm)
• Nominal thickness: 0.394 inches (10.0 mm)
• Discard thickness: 0.331 inches (8.4 mm)
• Floating disc mounting design
• 4 stud/lug holes with 0.638 inch (16.2 mm) diameter
• Weight approximately 7.7 lbs (3.5 kg)

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

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on delivering enhanced braking performance through improved heat management. The cross-drilled surface design helps reduce brake fade by allowing better ventilation and quicker heat dissipation. This rotor line is tailored for drivers who require consistent braking response and durability, making it suitable for Mini Cooper owners seeking a balance between everyday driving and spirited performance.

Technical Specifications and Features

This StopTech rotor features a solid disc construction with a cross-drilled surface type, which improves cooling efficiency during braking. The coated hat finish provides protection against corrosion, extending the rotor's service life. The rotor measures 10.189 inches (258.8 mm) in outside diameter with a nominal thickness of 0.394 inches (10.0 mm), and a discard thickness of 0.331 inches (8.4 mm). The overall height is 1.740 inches (44.2 mm), and it mounts using a floating disc design with a 100 mm (3.937 inch) bolt hole circle diameter and 4 lug holes sized at 0.638 inches (16.2 mm). This rotor does not include ABS tone rings or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mini Cooper vehicles
• Improves heat dissipation to reduce brake fade during aggressive driving
• Addresses rotor corrosion issues with coated hat finish
• Restores braking performance compromised by rotor thickness below discard limits
• Suitable for drivers seeking consistent pedal feel and stopping power

Installation Notes and Tips

• Ensure rotor thickness is within nominal specifications before installation
• Verify compatibility with Mini Cooper model year and brake system
• Use proper torque specifications for mounting bolts on the 100 mm bolt circle
• Inspect brake pads and replace if worn to optimize rotor performance
• Clean rotor surface before installation to remove any protective coatings or debris

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards for durability and performance. The coated hat finish enhances corrosion resistance, contributing to longer service life. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.