R1 99-05 Mazda Miata (NB) Rear Left Drilled Black Brake Rotor

Upgrade the braking performance and appearance of your 1999-2005 Mazda Miata NB with the R1 Concepts RNC623-54003L rear left drilled black brake rotor. Designed as a direct-fit replacement for the vehicle’s rear left position, this rotor combines functional braking performance with a durable black finish that complements both factory and modified builds. The drilled surface helps support heat management during repeated braking, while the precision design promotes consistent pad contact and responsive pedal feel.

The R1 Concepts RNC623-54003L rotor is manufactured for reliable fitment and straightforward installation using the vehicle’s original mounting location and compatible hardware. Its drilled design can help evacuate heat, gases, and moisture from the braking interface, supporting dependable performance in everyday driving and spirited use. The black-coated finish also helps protect exposed rotor surfaces from corrosion while maintaining a clean, finished appearance behind the wheel.

This automotive brake rotor is intended for the rear left side of 1999-2005 Mazda Miata NB applications. Verify vehicle year, generation, axle position, and brake system compatibility before ordering. Professional installation is recommended, followed by proper brake bedding according to the brake pad and vehicle manufacturer’s procedures. This product may contain chemicals known to the State of California to cause cancer or reproductive harm.

Features:

• Vehicle Fitment: Designed for 1999-2005 Mazda Miata NB models

• Brake Position: Rear left application

• Rotor Style: Drilled brake rotor for enhanced heat and moisture evacuation

• Finish: Durable black coating for a clean appearance and added surface protection

• Replacement Design: Engineered for direct-fit installation in the original rear left rotor position

• Brand and Part Number: R1 Concepts RNC623-54003L