Stoptech 127.51020R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.51020R) are engineered for enhanced braking performance on select Hyundai and Kia vehicles. Designed with a vented, floating disc construction, these rotors provide improved heat dissipation and consistent stopping power for models like the Hyundai Sonata and Kia Optima.

• Cross-drilled and slotted surface for better heat and gas dissipation
• Vented rotor design to reduce brake fade under heavy use
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for improved rotor alignment and performance
• Compatible with Hyundai Forte, Tucson, Sonata, and Kia Sportage, Veloster, and more

Detailed Product Features and Specifications

This StopTech rotor features a nominal thickness of 1.102 inches (28.000 mm) and a discard thickness of 1.039 inches (26.400 mm), ensuring reliable wear limits for safe operation. The rotor’s outside diameter measures 11.811 inches (300.000 mm), with an overall height of 1.878 inches (47.700 mm). It includes a 5-lug bolt pattern with a 4.5-inch (114.300 mm) bolt circle diameter and a center hole diameter of 2.717 inches (69.000 mm). The rotor’s hat is coated to protect against rust and corrosion, while the straight vane style enhances cooling efficiency. Weighing approximately 19.25 lbs (8.75 kgs), this vented rotor balances durability and performance for daily driving and spirited use.

About the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide improved braking performance through enhanced rotor surface technology. The cross-drilled and slotted design helps evacuate heat, brake dust, and gases generated during braking, reducing the risk of brake fade. The vented and floating rotor construction further aids in heat dissipation and rotor alignment, making this product line suitable for drivers seeking consistent braking performance on street and light track use. This part number 127.51020R is a direct fit for various Hyundai and Kia models, ensuring compatibility and ease of installation.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or towing
• Improves brake pad bite and responsiveness
• Minimizes rotor warping caused by excessive heat
• Helps prevent corrosion on rotor hats for longer service life
• Addresses uneven brake wear and noise issues

Installation Notes and Tips

Ensure the rotor surface is clean and free of any protective coatings before installation. This rotor does not include bearings or an ABS tone ring, so verify compatibility with your vehicle’s existing components. Proper torque specifications should be followed for the 5-lug mounting pattern. It is recommended to replace brake pads when installing new rotors to maintain optimal braking performance. Check rotor thickness regularly to avoid disc discard thickness limits.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.