The Girodisc A1-111 front brake discs, measuring 398 × 36 mm, enhance braking endurance during sustained use on the Ferrari 458 Italia (2009–2015), Ferrari 458 Speciale (2009–2015), Ferrari 488 GTB and Pista, Ferrari F8 Tributo, Ferrari 296 GTB and GTS, Ferrari SF90 Stradale, Ferrari FF and GTC4Lusso (2011–2020), Ferrari F12berlinetta (2012–2017), Ferrari F12tdf, Ferrari 812 Superfast, and Ferrari 812 Competizione. Their cast-iron rotors and aluminum hubs form a floating assembly designed to manage thermal stresses and facilitate rotor replacement due to wear. Sold in pairs, with one left-hand rotor and one right-hand rotor.
These rotors are intended for the front axle of compatible vehicles in the configuration indicated below. They retain the compatible caliper mounting; any required spacers and brake pad specifications must be observed.
The curved internal cooling fins channel air through the rotor to dissipate heat during repeated braking. The floating mounting limits stresses caused by thermal expansion differences between the rotor and the housing and helps the rotor center itself between the brake pads, maintaining consistent contact under heat.
The hub is made of 6061-T6 aluminum. The high-strength steel drive pins are cadmium-trimmed to resist corrosion. They are secured by Class 12.9 bolts and hardened washers. Spring washers minimize cold-mounting noise while allowing the necessary compression for the floating mount.
New pads must be installed with new discs or tracks. Their shape and compound must be compatible with the mounting, the cast iron, and the intended use; comply with the specific requirements for this part number and perform the prescribed break-in procedure.
Specifications for Girodisc A1-111 rotors for compatible vehicles
- Brand: Girodisc
- PartNumber: A1-111
- Position: front
- Sizes (diameter × thickness): 398 × 36 mm
- Vehicles and models: Ferrari 458 Italia (2009–2015); Ferrari 458 Speciale (2009–2015); Ferrari 488 GTB and Pista; Ferrari F8 Tributo; Ferrari 296 GTB and GTS; Ferrari SF90 Stradale; Ferrari FF and GTC4Lusso (2011–2020); Ferrari F12berlinetta (2012–2017); Ferrari F12tdf; Ferrari 812 Superfast; Ferrari 812 Competizione
- Braking surface: high-resistance cast steel
- Packaging: Pair of complete rotors, one left and one right, with disc bells.
- Housing: 6061-T6 aluminum
- Construction: two-piece floating assembly for mounting
- Catalog part number for brake rotors: D1-111. Verify compatibility with the caliper generation before replacement.
- Internal ventilation: directional curved fins
- Minimum thickness: 34 mm
- Original rotor diameter: 398 mm
- Manufacturing of main components: United States
Vehicles compatible with Girodisc part number A1-111
- Ferrari 458 Italia (2009–2015)
- Ferrari 458 Speciale (2009–2015)
- Ferrari 488 GTB and Pista
- Ferrari F8 Tributo
- Ferrari 296 GTB and GTS
- Ferrari SF90 Stradale
- Ferrari FF and GTC4Lusso (2011–2020)
- Ferrari F12berlinetta (2012–2017)
- Ferrari F12tdf
- Ferrari 812 Superfast
- Ferrari 812 Competizione
- Ferrari 458 Italia (2009–2015): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 458 Speciale (2009–2015): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 488 GTB and Pista: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari F8 Tributo: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 296 GTB and GTS: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari SF90 Stradale: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari FF and GTC4Lusso (2011–2020): Includes the GTC4Lusso T version.
- Ferrari FF and GTC4Lusso (2011–2020): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari F12berlinetta (2012–2017): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari F12tdf: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 812 Superfast: GTS version included.
- Ferrari 812 Superfast: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 812 Competizione: Competizione A version included.
- Ferrari 812 Competizione: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
Each application is subject to its specific brake system, calipers, and any requirements for brake pads or spacers. Please verify these requirements before ordering.
Girodisc A1-111 Mounting Requirements
- Ferrari 458 Italia (2009–2015): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 458 Speciale (2009–2015): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 488 GTB and Pista: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari F8 Tributo: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 296 GTB and GTS: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari SF90 Stradale: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari FF and GTC4Lusso (2011–2020): Includes the GTC4Lusso T version.
- Ferrari FF and GTC4Lusso (2011–2020): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari F12berlinetta (2012–2017): Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari F12tdf: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 812 Superfast: GTS version included.
- Ferrari 812 Superfast: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
- Ferrari 812 Competizione: Competizione A version included.
- Ferrari 812 Competizione: Brake pads with a maximum radial sweep height of 66 mm are required for this track.
Brake Pads and Braking Systems for Compatible Vehicles
Choose brake pads whose shape is compatible with the calipers, the track, and/or the A1-111 rotor, and whose compound is suitable for sport driving or track use. The Endless, pagid Racing, or Ferodo Racing ranges may be considered after verifying the appropriate part number.
For intensive use, we recommend compatible aviation-grade hoses and a high-performance brake fluid that meets the vehicle’s specifications, along with proper bleeding and fluid replacement. This recommendation complements the mounting compatible with the original hydraulic system.
Maintenance of the Girodisc mounting on compatible vehicles
Replacing only the pads helps keep the rotors in good condition. Reusing a rotor for up to three pad replacements is subject to inspection of its condition, its mounting components, and the mounting instructions; this number does not constitute a guaranteed service life. Use a new mounting component with each pad replacement.
FAQ — Girodisc A1-111 for Compatible Vehicles
What are the sizes of the A1-111 discs for my vehicle? The part number shown measures 398 × 36 mm and is mounted on the front axle. The diameter alone is not sufficient: also check the brake system type and mounting requirements.
Is the product sold in pairs? Yes. It includes a left and a right disc for the same axle. Both discs come with their disc bells.
Do I need to replace the brake pads on my vehicle?Yes. Always install new brake pads with new rotors or new braking surfaces. Use a compound suitable for cast iron and your intended use. Brake pads with a maximum radial height of 66 mm are required for this braking surface.
How do I identify the left and right sides? Girodisc rotors come with a label attached to each rotor: LEFT for the left side and RIGHT for the right side, as viewed from the direction of travel. On a left-hand-drive vehicle, “LEFT” corresponds to the driver’s side and “RIGHT” to the passenger side. Follow these labels and the instructions. On models with curved internal fins, the rolling direction depends on this internal ventilation; the surface grooves alone are not sufficient to determine the side.
How do I break in this mounting on my vehicle? Follow the Girodisc procedure and the brake pad manufacturer’s instructions to build up an even transfer ply. The PDF documents below detail installation and break-in.
PDF Documents for Mounting and Break-in
We have included two PDF documents below: an instruction manual for installing and breaking in the discs, and an instruction manual for installing new tracks on existing bowls. Consult the document that applies to your specific task before you begin.
Girodisc A1-111 Highlights
- 398 × 36 mm size for front braking on compatible vehicles.
- 6061-T6 aluminum rotor and floating mount to manage thermal stresses.
- Internal ventilation via curved fins to dissipate heat.
- Replaceable pads to maintain a two-piece mounting.
- Left/right pair identified for mounting.
- Aluminum rotors help reduce unsprung and rotating mass compared to a comparable one-piece cast-iron disc.
