R1 Concepts RNC631-80023L Rear Left Drilled and Slotted Brake Rotor for 1990-1993 Mazda Miata

Headquartered in Los Angeles, California, USA. R1 Concepts is the leading manufacturer and retailer of award winning automotive braking systems. With over 20 years of automotive brake knowledge, R1 Concepts has developed one of the most comprehensive brake catalog in the industry for all foreign and domestic vehicle applications from 1930-present.

Upgrade the rear braking performance of your 1990-1993 Mazda Miata with the R1 Concepts RNC631-80023L drilled and slotted brake rotor. Designed for the rear left position, this silver-finished rotor is engineered to provide consistent braking response, improved heat management, and dependable performance for street-driven vehicles. R1 Concepts combines more than 20 years of automotive brake expertise with application-specific engineering to support a wide range of foreign and domestic vehicles.

The RNC631-80023L rotor uses precision-drilled holes and directional slots to help dissipate heat and reduce the buildup of gases, dust, and moisture between the rotor and brake pad. This design can promote more consistent pad contact during repeated braking while supporting improved friction stability. The silver finish adds corrosion resistance to exposed rotor surfaces and provides a clean appearance behind the wheel.

Built as a direct-fit replacement for the rear left side of compatible Mazda Miata applications, this R1 Concepts rotor is intended to restore braking system performance without unnecessary modifications. Confirm the vehicle configuration and brake system before ordering. Professional installation is recommended, and all braking components should be inspected and properly bedded according to the manufacturer's procedures after installation.

What's Included

• One R1 Concepts RNC631-80023L rear left drilled and slotted brake rotor

Fitment

Fits 1990-1993 Mazda Miata applications, including the listed model years and configurations.

Features:

• Rear Left Position: Designed for installation on the driver-side rear wheel of compatible 1990-1993 Mazda Miata models.
• Drilled and Slotted Design: Helps manage heat, gases, dust, and moisture for consistent brake pad contact.
• Silver Finish: Provides corrosion resistance on exposed rotor surfaces while maintaining a clean appearance.
• Direct-Fit Replacement: Engineered for compatible Mazda Miata brake systems and intended to install without major modifications.

Fitments:
1990 Mazda Miata Base
1991 Mazda Miata Base
1991 Mazda Miata SE
1992 Mazda Miata Base
1993 Mazda Miata Base
1993 Mazda Miata LE

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