Dixcel FS Replacement Rotor Rings - 355x32mm 12-Slot - Alcon DIV2146 / DBA 52750.1

Dixcel FS Replacement Rotor Rings (Pair) - 355x32mm 12-Slot - AP CP4542-106/107 / CP4542-306/307 / Alcon DIV2146 / DBA 52750.1

Refresh your two-piece big brake kit with Dixcel FS replacement rotor rings, engineered in Japan and developed through decades of OEM supply and motorsport experience. Dixcel rotor rings are designed to deliver consistent braking performance, stable pedal feel, and reliable control under demanding circuit and trackday conditions, while preserving the aluminium centre hats, mounting bobbins, and hardware from your existing two-piece BBK setup.

This listing covers a matched left and right pair of 355x32mm 12-slot Dixcel FS replacement friction rings (part number FS-35532A22R/23L). These rings are designed as direct cross-references for popular two-piece big brake kits from AP Racing, Alcon, and DBA, with matching dimensions, mounting PCD, and bolt pattern. The 12-slot pattern delivers improved bite, gas evacuation, and pad cleaning compared to plain rotors, while the ring-only design significantly reduces both replacement cost and rotational mass compared to full two-piece rotor assemblies.

Compatible Big Brake Kit Applications

• AP Racing CP4542-106 / CP4542-107 / CP4542-106/107 (paired set)
• AP Racing CP4542-306 / CP4542-307 / CP4542-306/307 (paired set)
• Alcon DIV2146X717 / DIV2146X717C24L / DIV2146X717C24R (paired set)
• DBA 52750.1 (5000 Series two-piece replacement ring)
• Other manufacturers' two-piece BBKs sharing 355mm OD, 32mm thickness, 244mm ID, 215.9mm mounting PCD, and 12 x 6.4mm bolt holes

Rotor Ring Specifications

• Dixcel Part Number: FS-35532A22R/23L (paired set)
• Dixcel Reference: AP 355 x 32 / CP4542-106/107
• Slot Pattern: SLIT-12 (12 directional slots)
• Outer Diameter: 355.0mm
• Thickness: 32.0mm
• Inner Diameter: 244.0mm
• Hat Bore: 195.0mm
• Mounting PCD: 215.9mm
• Mounting Holes: 12 x 6.4mm
• Mounting Hardware: M8 (8.0 x 8.0mm)
• Heat Capacity: 39,000 / 78,000 (per ring / paired)
• Sold As: Pair (Left and Right)
• Origin: Made in Japan

Important Fitment Notes

• This product is a replacement rotor ring only - aluminium hats, mounting bobbins, and hardware are NOT included. You must reuse the centre hat and hardware from your existing two-piece BBK or pair these rings with a compatible new hat.
• Confirm your current rotor's outer diameter, thickness, mounting PCD, and bolt hole pattern match the specifications above before ordering.
• Two-piece replacement rings allow significant cost savings compared to replacing an entire two-piece rotor assembly when only the friction ring is consumed.
• Cross-reference part numbers and specifications with your BBK manufacturer's documentation if your specific kit is not listed above.

BBK manufacturer cross-references, dimensions, and fitment notes are provided in the section above. Please ensure your existing rotor specifications, BBK kit details, and hardware compatibility are confirmed 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.