DIXCEL FS Replacement Rotor Rings for Brembo 09.A186.13/23 - 380x28mm 12 Slot

DIXCEL FS Replacement Rotor Rings - Brembo 09.A186.13/23 - 380x28mm 12 Slot

Restore your braking performance with Dixcel FS replacement rotor rings, engineered in Japan and developed through decades of OEM supply and motorsport experience. The FS series is built for sustained competition use, where consistent friction, heat management, and dimensional stability under repeated high-energy stops matter more than anything else.

These are replacement friction rings only. They are designed to be fitted to your existing Brembo two-piece assembly, reusing your current hat, bobbins, and hardware. This allows a worn disc face to be refreshed without replacing the complete assembly.

This listing covers the Brembo 380 x 28mm two-piece assembly, cross-referenced to Brembo part numbers 09.A186.13 and 09.A186.23 and 90.6572 and 90.6573. The rings are side-specific: FS-38028B52R is the right hand ring and FS-38028B53L is the left hand ring. Both are supplied together as a pair. The SLIT-12 face carries twelve slots for consistent bite and clean pad degassing.

Important: This is a motorsport component intended for competition use. Bolts, nuts, bobbins, and springs are not supplied and must be reused from your existing assembly or sourced separately. Please confirm your hat, hardware, and disc dimensions before ordering.

Rotor Ring Specifications

• Dixcel Part Numbers: FS-38028B52R (Right) / FS-38028B53L (Left)
• Type: SLIT-12 (12 Slot)
• Outer Diameter (OD): 380mm
• Thickness (TH): 28mm
• Inner Bore: 272mm
• Outer Bore: 242mm
• Flange Thickness: 6mm
• Offset: 1mm
• Outer Disc Thickness: 5.8mm
• Inner Disc Thickness: 5.8mm
• Air Gap: 16.5mm
• PCD: 258mm
• Number of Holes: 10
• Hole Diameter: 8.15mm / 10.25mm
• Brembo Reference: 09.A186.13 / 09.A186.23 / 90.6572 / 90.6573
• Bolts and Nuts: Not supplied
• Bobbins and Springs: Not supplied
• Supplied As: Left and right pair

Compatibility, Brembo reference numbers, and rotor ring specifications are provided in the section above. Please confirm your assembly dimensions and hardware before ordering.

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.