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R1 Concepts 623-58004L RNC Series Cross-Drilled Brake Rotor - Left

Manufacturer

Picture for manufacturer R1 Concepts

Part Number

623-58004L
5 reviews
Sale Price

$97.88

Estimated ship date Tuesday, November 24

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The R1 Concepts 623-58004L is a RNC Series cross-drilled brake rotor engineered as a direct-fit, performance upgrade over your factory braking components. Manufactured to OEM specifications, this left-side (driver side) rotor installs without modification and delivers confident, reliable stopping power.

Key Features:

  • Cross-Drilled Design: Precision-drilled holes enhance ventilation, dissipate heat more efficiently, and help prevent brake fade during repeated or aggressive stops
  • G3000 Grade Cast Iron Construction: High-quality base material ensures durability, consistent performance, and long service life
  • Zinc Plated Finish: Protective coating guards against corrosion and surface rust, improving appearance and extending rotor life
  • Double Disc Ground Braking Surface: Promotes faster, more even brake pad bed-in for quieter and smoother initial performance
  • OEM Direct-Fit Replacement: Engineered to factory specifications — no modifications, adapters, or special hardware required
  • Left / Driver Side: Sold as a single rotor; confirm position before ordering

The R1 Concepts RNC Series drilled brake rotor is ideal for daily drivers seeking improved braking performance beyond stock. The countersunk hole design helps prevent cracking under heat stress while maintaining consistent pad contact. A proper break-in procedure is recommended after installation to fully seat the rotor and brake pads for optimal performance.

Shipping took longer than expected as I paid for expedited shipping. I reached out to ask why it wasn't sent two day and got no reply. The customer service could really use improvement and this is reflected in multiple reviews. However, the products arrived safely and as described. I'm very satisfied with the pricing as well. At the end of the day, that's the most important thing.

Wasn't happy with the extra charges for handling. Do not see that until I paid it.

It was delivered when it said it was supposed to haven't opened it yet but look forward to seeing it

Quick easy checkout

Easy enough.

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