Stoptech 127.22011L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.22011L) are engineered for Land Rover vehicles including Discovery, LR4, Range Rover, and Range Rover Sport models. Designed to enhance braking performance, these rotors feature a vented, cross-drilled, and slotted surface for improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for better heat and gas dissipation
• Vented rotor design with pillar-style vanes to reduce brake fade
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for improved rotor alignment and performance
• Compatible with Land Rover Discovery, LR4, Range Rover, and Range Rover Sport
• Nominal thickness of 1.181 inches (30.000 mm) with discard thickness at 1.063 inches (27.000 mm)
• Outside diameter of 14.173 inches (360.000 mm) and overall height of 2.453 inches (62.300 mm)
• Five lug holes with a 4.724 inch (120.000 mm) bolt circle diameter

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 enhanced braking performance through advanced rotor surface technology. The combination of cross-drilled holes and precision slots helps to evacuate heat, brake dust, and gases more efficiently than standard rotors. This product line is ideal for drivers seeking improved brake response and reduced fade under demanding driving conditions, making it suitable for Land Rover models requiring reliable and consistent braking.

Product Details and Specifications

This disc brake rotor features a vented design with pillar-style vanes that promote airflow to cool the rotor during braking. The rotor’s coated hat finish offers protection against rust and corrosion, extending the service life of the part. With a floating disc mounting system, the rotor maintains better alignment and reduces the risk of warping. The rotor measures 14.173 inches (360 mm) in outside diameter and has a nominal thickness of 1.181 inches (30 mm), with a discard thickness of 1.063 inches (27 mm), ensuring it meets precise fitment requirements for Land Rover Discovery, LR4, Range Rover, and Range Rover Sport vehicles.

Common Applications and Problem Solving

• Improves brake cooling to reduce fade during heavy braking
• Minimizes brake dust buildup for cleaner braking surfaces
• Reduces rotor warping and cracking under high stress
• Enhances stopping power and pedal feel for Land Rover models
• Prevents corrosion with coated hat finish for longer rotor life

Installation Notes and Tips

Ensure the rotor is installed on compatible Land Rover models: Discovery, LR4, Range Rover, and Range Rover Sport. Verify the rotor thickness before installation and replace if below discard thickness (1.063 inches / 27 mm). Use proper torque specifications for the five lug bolts on the 4.724 inch (120 mm) bolt circle diameter. Since bearings and ABS tone rings are not included, reuse existing components or replace as needed. It is recommended to inspect brake pads and calipers during rotor replacement for optimal braking performance.

Quality Assurance and Warranty

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The rotors undergo rigorous quality control to ensure durability and consistent 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.