Stoptech 227.42101L Disc Brake Rotor - Rear Left

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 227.42101L) are engineered for enhanced braking performance on Nissan and INFINITI vehicles. Designed specifically for models like the 350Z, 370Z, G37, Q60, and Z, these rotors offer reliable stopping power with improved heat dissipation and reduced brake fade.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design to maintain optimal operating temperatures
• Compatible with Nissan 350Z, 370Z, INFINITI G37, Q60, and Z models
• Overall diameter of 350 mm (13.780 inches) for precise fitment
• 5 lug holes with a 114.3 mm (4.5 inch) bolt circle diameter
• Nominal thickness of 20.0 mm (0.787 inches) with discard thickness at 18.0 mm (0.709 inches)
• Weight approximately 9.5 kg (20.9 lbs) for balanced performance

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are part of StopTech's Select Sport line, designed to provide a balance between daily driving and spirited performance. Featuring a slotted and drilled surface, these rotors improve pad bite and help evacuate heat and debris, which is critical for maintaining consistent braking on performance-oriented vehicles such as the Nissan 350Z and INFINITI Q60. The vented rotor design further aids in cooling, reducing the risk of brake fade during aggressive driving conditions.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and heat dissipation. The rotor's outside diameter measures 350 mm (13.780 inches), with a center hole diameter of 68 mm (2.677 inches) and a mounting bolt hole circle diameter of 114.3 mm (4.5 inches). It includes five stud/lug holes, each 12.8 mm (0.504 inches) in diameter, ensuring compatibility with the specified Nissan and INFINITI models. The nominal thickness is 20.0 mm (0.787 inches), with a discard thickness of 18.0 mm (0.709 inches), indicating when replacement is necessary to maintain braking efficiency.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Nissan 350Z, 370Z, INFINITI G37, Q60, and Z models
• Improves braking performance by reducing heat buildup and brake fade
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Enhances pad bite and braking consistency under aggressive driving conditions
• Suitable for drivers seeking improved rotor cooling and durability

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (18.0 mm) before installation
• Check compatibility with vehicle lug pattern: 5 lug holes on a 114.3 mm bolt circle
• Use proper torque specifications for mounting bolts to avoid rotor warping
• Inspect brake pads and calipers during installation for optimal performance
• Break in new rotors according to manufacturer recommendations to prevent uneven wear

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. While specific warranty details are not provided here, StopTech products typically come with a limited warranty covering defects in materials and workmanship. It is recommended to consult the product documentation or StopTech directly for complete warranty information.