Stoptech 126.44185SR Disc Brake Rotor - Front Right

StopTech Sport Slotted Disc Brake Rotors Overview

The StopTech Sport Slotted Disc Brake Rotors (Part Number 126.44185SR) are engineered for Lexus models including GS300, GS350, GS450h, IS200t, IS300, IS350, RC200t, RC300, and RC350. These vented, slotted rotors provide consistent braking performance and improved heat dissipation for enhanced driving control.

• Vented disc design with curved vane style for efficient heat dissipation
• Slotted surface type to improve pad bite and reduce brake fade
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with 5-lug wheel setups with 114.3 mm bolt circle diameter
• Nominal thickness of 30.000 mm and discard thickness of 27.000 mm
• Outside diameter of 334.000 mm and overall height of 51.000 mm

About StopTech Sport Slotted Disc Brake Rotors

The StopTech Sport Slotted Disc Brake Rotors line is designed to meet the demands of performance-oriented drivers who require reliable braking under various conditions. Featuring a slotted surface, these rotors help maintain clean pad contact and improve braking consistency. The vented design with curved vanes enhances airflow to reduce heat buildup, which is critical for maintaining rotor integrity and preventing brake fade during spirited driving or heavy use.

Technical Specifications and Features

These rotors have a nominal thickness of 30.000 mm and a discard thickness of 27.000 mm, ensuring a clear service life indicator. The coated hat finish provides corrosion resistance, helping to maintain structural integrity over time. The floating disc mounting system allows for slight rotor movement, reducing the risk of warping and improving overall braking smoothness. With an outside diameter of 334.000 mm and an overall height of 51.000 mm, these rotors are designed to fit precisely on compatible Lexus models.

Applications and Problem Solving

• Improves braking performance on Lexus GS and IS series vehicles
• Reduces brake fade during aggressive driving or towing
• Minimizes rotor warping and extends rotor lifespan
• Enhances pad bite and braking consistency with slotted design
• Resists corrosion with coated hat finish for longer service intervals

Installation Notes and Tips

Ensure compatibility with your Lexus GS300, GS350, GS450h, IS200t, IS300, IS350, RC200t, RC300, or RC350 before installation. The rotor features a 5-lug pattern with a 114.3 mm bolt circle diameter and a center hole diameter of 62.000 mm. No ABS tone ring or bearings are included, so verify existing components are compatible. Proper torque specifications and brake system inspection are recommended during installation to maintain safety and performance.

Quality Assurance and Warranty

StopTech Sport Slotted Disc Brake Rotors are manufactured to meet strict quality standards for durability and performance. 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.