EBC USR643 USR Slotted Rear Brake Rotors for 1990-1994 Mazda Miata MX-5 1.6L

Choose from EBC plain non drilled rotors or sport rotors in two choices - wide aperture 3GD series for cooler running or new SUPER SILENT Ultimax USR slotted series. All EBC rotors are British made and are precision machined in the UK. Rotors are made from high quality grey iron to exacting standards and undergo extensive testing and rigorous quality control.Slotted rotors can significantly improve brake performance and longevity when used with a matching high friction pad set. Having sold hundreds of thousands of brake kits EBC Brakes feel confident their approach is as perfect as it gets. 54mm Center Hole Dia.

• Narrow slots reduce air noise
• Reduced Brake Fade At Speed
• Pads Stay Smooth And Flat
• Ideal For Premium Sedans
• Brakes Run Cooler

Brief Description: EBC USR643 USR Series rear brake rotors are designed for 1990-1994 Mazda Miata MX-5 models equipped with the 1.6L engine. These British-made rotors are precision machined from high-quality gray iron and engineered to provide consistent braking performance, reduced brake fade, and dependable service life for premium street-driven vehicles.

The USR Series uses narrow, precision-machined slots to help reduce air noise while promoting stable pad contact and effective heat management. The slot design helps keep brake pads smooth and flat, allowing the braking system to maintain consistent friction during repeated stops. When paired with a compatible high-friction brake pad set, EBC USR643 rotors can help improve braking response and pad longevity.

Each rotor is manufactured in the United Kingdom and subjected to extensive testing and rigorous quality control. With a 54-millimeter center hole diameter and vehicle-specific fitment, the EBC USR643 is a direct replacement solution for restoring dependable rear braking performance without the need for modifications. Professional installation is recommended, and brake components should be installed and inspected according to the vehicle manufacturer’s service procedures.

Key Product Specifications & Technical Data:

• Brand: EBC
• Part Number: USR643
• Product Type: Rear slotted brake rotor
• Rotor Series: USR Super Silent Ultimax
• Vehicle Fitment: 1990-1994 Mazda Miata MX-5 1.6L
• Center Hole Diameter: 2.13 inches
• Manufacturing Origin: United Kingdom
• Material: High-quality gray iron

What's Included in the Box: One EBC USR643 USR Series slotted rear brake rotor. Verify vehicle application and replace rotors in axle pairs when required by the vehicle manufacturer or brake system service recommendations.

Features:

• Narrow slots reduce air noise while supporting stable brake pad contact
• Helps reduce brake fade during repeated or high-speed braking
• Keeps brake pads smooth and flat for consistent friction performance
• Designed for cooler-running brakes and premium street-driven sedans and sports cars

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1