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These GiroDisc replacement rotor rings service the exact hat, diameter, thickness, annulus, and mounting interface identified below. Similar-looking rings are not interchangeable, so every dimension and the required hat system must be confirmed before ordering.
Key Features
- Lightweight Aluminum Hat: Hard-anodized 6061-T6 hat weighs 5.2 lbs per side versus 12 lbs for steel OEM equivalents, lowering rotational mass.
- Precision Dimensions: 355mm diameter x 32mm thickness x 52mm height ensures perfect fit with Alcon/Stoptech calipers and OEM-style hub mounting.
- Two-Piece Floating Design: High-carbon slotted ring floats on 6061-T6 aluminum hat to handle thermal expansion without warping or cracking.
- Slotted Rotor Surface: Narrow slots enhance initial bite, expel gases and debris for reliable performance in wet or track conditions.
- Curved Internal Vane: Patented 72-vane design directs cooling air through rotor core, dissipating heat 30% faster than straight vane rotors.
- High-carbon 72-vane slotted iron rings paired with 6061-T6 hard-anodized aluminum hats for strength and corrosion resistance.
Fitment
| Fitment Basis | Universal only by exact part dimensions, pad shape, caliper, or rotor-hat interface |
|---|---|
| Required Verification | Confirm every dimension and interface against the current GiroDisc specification before ordering |
Specifications
| Brand | GiroDisc |
|---|---|
| Manufacturer Part Number | GD355.32.52 |
| Product Type | Replacement Brake Rotor Rings |
| Position | Application specific |
| Fitment Type | Universal by exact interface |
What's Included
The replacement ring set and only the mounting hardware GiroDisc states is supplied for this exact part number
About GiroDisc
GiroDisc designs and manufactures serviceable two-piece brake rotors, replacement rings, and related brake components in Bellingham, Washington. Selection remains exact-part-number and brake-configuration specific.
Related GiroDisc Products
- GiroDisc 97-04 Audi A6/Allroad (C5 w/Brembo 18Z 6 Pot) Slotted Front Rotors
- GiroDisc 02-04 Audi RS6 (C5) 380mm (w/Spacers) Slotted Front Rings
- GiroDisc 02-04 Audi RS6 (C5) 380mm Slotted Front Rotors (w/Spacers)
Browse the GiroDisc collection for related brake components.
Frequently Asked Questions
How do I confirm this part matches my brake setup?
Match the exact GiroDisc part number, rotor dimensions, annulus, pad shape, caliper family, hat interface, and hardware requirements. Appearance alone is not enough.
Will these rings fit factory or another brand',s hats?
Do not assume so. Most GiroDisc replacement rings are designed only for the specified GiroDisc hats unless the listing explicitly identifies a factory, Brembo, StopTech, or PFC interface.
Should the old mounting hardware be reused?
Use only the hardware method GiroDisc specifies for this exact ring. Some kits include new hardware, while factory-hat applications may require reuse or separately sourced hardware.
Installation Instructions
Replacement-ring service involves safety-critical brake hardware. Follow the current GiroDisc assembly instructions, confirm the exact hat interface and ring direction, use only approved hardware, torque fasteners in the required sequence, check runout and clearance, and complete the specified bedding process.
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