BMW Brake Rotors

Girodisc A1-186 Two-Piece Floating Front Racing Brake Rotors Girodisc Rotors to Replace the Front Rotors on the Following Cars: BMW F80 M3 with blue calipers, Front BMW F82 M4 with blue calipers, Front BMW F87 M2 with blue calipers, Front Upgrade Your BMW F8x To The Best Racing Rotors Available If you have a BMW M2, M3, or M4 with blue calipers and iron rotors, this Girodisc floating iron rotor system is a direct replacement for your BMW ;front rotors. No modifications to your car are necessary. The 380mm diameter rotors will bolt directly to your BMW and work with the original blue calipers perfectly. By upgrading your BMW brakes with lightweight high-performance replacements, your factory bias is maintained as well as your ABS efficiency. Girodisc two-piece floating rotors are lighter than OEM brake rotors. This reduction in rotational mass and unsprung weight allows for quicker acceleration, sharper steering, and faster suspension response. When used with Pagid or PFC performance brake pads and CMS RF-1 brake fluid (available from Competition Motorsport), you have an amazing solution to overheating, cracking and warping rotors. The central hat section of each Girodisc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron constructed in the USA, made to the same specification with the same material used by professional racing organizations. The rotors' curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat mount together through a floating mount system which utilizes ten high strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by Grade-12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The two-piece Girodisc design allows for disc-only replacement as well, minimizing future replacement costs and delivering outstanding performance. Sold/priced per pair.

Girodisc BMW F8X M2, M3, M4 Rear Rotors Unlock the full braking potential of your BMW with Girodisc’s 368mm two-piece rear rotor upgrade for the F8X M2, M3, and M4. These lightweight, high-performance rotors are a direct bolt-on replacement for factory units, delivering sharper response, reduced fade, and better cooling whether on the street or at the track. Precision Engineering Meets Race-Proven Performance Each Girodisc rotor is meticulously crafted in the USA using a floating two-piece design. The hat section is CNC-machined from 6061-T6 aircraft-grade aluminum, while the rotor rings are cast from Girodisc’s proprietary high-carbon iron alloy. The curved vane internal design works as a centrifugal pump, pulling air through the rotor to maximize cooling efficiency during repeated high-speed stops. Features • Direct replacement for OEM 368mm rear rotors – no modifications needed• Lightweight 6061-T6 billet aluminum hats with anodized finish• Proprietary cast iron rotor rings, cast and machined entirely in the USA• Floating mount system allows controlled expansion for improved durability• Anti-noise spring washers eliminate rattle while maintaining proper float• 48 curved directional vanes for superior cooling and consistent performance• Reduces unsprung and rotational weight for enhanced handling• Sold/priced per pair Vehicle Fitment BMW M2 (F87, non-Competition)BMW M3 (F80, all trims)BMW M4 (F82/F83, all trims)Compatible with vehicles using factory 368mm rear iron rotors and blue calipers. Note: M2 Competition and models with carbon-ceramic brakes require a different rotor size. Girodisc A2-186 Rear Rotor FAQs: Are these rotors compatible with the M2 Competition? No. The M2 Competition uses a larger 380mm rotor setup. These rotors fit the standard M2 with 368mm rears. Do I need new pads with these rotors? It’s recommended to install new pads when upgrading rotors to ensure optimal bedding and performance. Will these affect ABS or traction control? No. Girodisc rotors are manufactured to precise OEM dimensions, ensuring full compatibility with all factory electronic systems. Are Girodisc rotors rebuildable? Yes. Once installed, you can replace just the iron rings when worn—no need to purchase complete new assemblies. Enhance your BMW’s braking confidence and precision with Girodisc 368mm rear rotors. Designed for both daily driving and track use, they deliver performance you can feel every time you hit the brakes.

BMW F8X M2 / M3 / M4 400mm Front Rotors Upgrade your BMW’s stopping power with Girodisc 400mm 2-piece floating front rotors for the F8X M2, M3, and M4. Designed as a direct bolt-on replacement for factory discs, these rotors require no modifications and work flawlessly with OEM calipers. Lighter, stronger, and more thermally efficient than stock, they transform your braking consistency and control on both street and track. Precision Performance Meets German Engineering Each Girodisc rotor is crafted in the USA from motorsport-grade materials to meet the demands of high-performance BMWs. The hat is CNC-machined from 6061-T6 aluminum to reduce weight and unsprung mass, while the cast-iron rotor rings are made from Girodisc’s proprietary high-carbon alloy. Internal curved vanes act as centrifugal pumps, pulling air through the rotor to keep braking temperatures stable during spirited driving and heavy track sessions. Vehicle Fitment BMW M2 (F87, Competition & CS) BMW M3 (F80) BMW M4 (F82, F83, including Competition & GTS) Features Direct OEM Fit: Installs with factory calipers and hardware — no adapters needed. 400mm Two-Piece Floating Design: Reduces rotational and unsprung weight for quicker response and improved handling. Curved Vane Internal Cooling: Acts as a centrifugal pump, forcing cool air through the disc for optimal heat management. Floating Mount System: Twelve high-strength steel drive pins and anti-noise spring washers allow precise thermal expansion with silent operation. Replaceable Iron Rings: The aluminum hat is reusable — simply swap in new rings when needed. Made in the USA: Designed, cast, and machined domestically under tight performance tolerances. FAQs – BMW F8X M2 / M3 / M4 400mm Front Rotors Do these rotors fit stock BMW calipers? Yes, they’re a direct replacement designed for OEM calipers and hardware. Will I notice a difference in pedal feel? Absolutely — reduced weight and improved ventilation give a firmer, more consistent pedal under repeated stops. Are these rotors track-capable? Yes. Girodisc rotors are engineered for track use yet remain quiet and reliable for everyday driving. Do they come as a set? Yes, all Girodisc rotors are sold and priced per pair. Take your F8X BMW’s braking to the next level with Girodisc’s lightweight 400mm floating rotors. Engineered for high-speed stability and race-ready heat control, they deliver unmatched stopping confidence wherever you drive.

Girodisc A1-157 BMW Front Rotors The Girodisc Front Rotor set for the BMW E9X M3 provides a precision-engineered, lightweight upgrade that enhances braking performance and thermal management without the need for any modifications. Designed as a direct OEM replacement, these two-piece rotors retain full compatibility with the factory calipers and ABS system while reducing rotating and unsprung mass for sharper handling and acceleration. Vehicle Fitment This Girodisc front rotor set fits the following BMW models: BMW M3 E90 Sedan (2008–2011) BMW M3 E92 Coupe (2008–2013) BMW M3 E93 Convertible (2008–2013) Direct bolt-on installation using the OEM calipers and hardware. No spacers, brackets, or modifications required. Performance and Design Each rotor weighs significantly less than the factory single-piece iron discs, resulting in reduced rotational inertia and improved suspension response. The 48 curved directional vanes inside the rotor act as a centrifugal pump, pulling air through the disc to increase cooling efficiency and reduce fade during repeated high-performance braking. The central hat is CNC-machined from U.S.-sourced 6061-T6 aluminum for strength and low weight, while the friction ring is Girodisc’s proprietary cast iron, poured and machined entirely in the USA. Features - Direct OEM replacement; bolts on with no modifications required. - Two-piece floating rotor design reduces unsprung and rotating mass. - Proprietary cast iron rotor ring with 6061-T6 aluminum hat for optimal strength and heat management. - 48 curved directional vanes improve cooling and minimize fade during aggressive driving or track use. - Floating mount system with ten high-strength alloy steel drive pins allows for precise axial and radial float. - Anti-noise spring washers eliminate rattle during street driving while maintaining full float when hot. - Cadmium-plated hardware and class 12.9 cap screws for corrosion resistance and durability. - Fully designed, cast, and machined in the USA to Girodisc motorsport-grade tolerances. Specifications Rotor Type: Two-piece floatingVane Count: 48 curved directionalMaterial: Proprietary cast iron with 6061-T6 aluminum hatHardware: 10 alloy steel drive pins with anti-noise spring washersFitment: BMW E90, E92, E93 M3 (2008–2013)Installation: Direct bolt-onSold as: Pair (left and right front rotors) FAQs: BMW E9X M3 Front Rotors (Girodisc) Do these rotors fit with the OEM calipers? Yes. They are designed as a direct replacement and work perfectly with the factory calipers and pads. What benefits do these offer over stock rotors? Reduced unsprung mass, faster suspension response, improved cooling, and more consistent braking under heavy use. Are these noisy during normal street use? No. The use of anti-noise spring washers eliminates rattle while maintaining full floating capability under heat. Can the rotors be rebuilt? Yes. Once the iron friction rings wear out, they can be replaced independently, allowing reuse of the aluminum hats and hardware. Ordering Information Sold and priced per pair. Includes left and right Girodisc front rotors for the BMW E9X M3.

Girodisc Rear Brake Rotors – BMW F8X M2 / M3 / M4 The Girodisc A2-220 Rear Rotor Kit is a direct replacement for factory carbon ceramic or iron rotors on the BMW F8X platform, including the M2, M3, and M4. Designed for drivers who demand superior thermal control and serviceability, these 380mm two-piece rotors deliver exceptional braking consistency, reduced weight, and race-proven reliability—without any modifications required. Convert Carbon Ceramic to Iron with OEM Precision For vehicles originally equipped with BMW’s carbon ceramic rotors, this Girodisc kit offers a straightforward conversion to high-performance iron rotors. The system bolts directly to the car using the factory calipers and hardware, maintaining OEM brake bias and ABS calibration. Girodisc’s curved-vane design and floating mount system ensure cooler operation, quieter performance, and reduced maintenance costs compared to carbon ceramics. Features • Direct replacement for 380mm BMW F8X M2 / M3 / M4 rear rotors• Converts carbon ceramic brakes to iron rotors with no modifications• Two-piece floating design: 6061-T6 aluminum hat + proprietary cast-iron ring• Curved-vane geometry for superior heat dissipation• Floating mount system with cadmium-plated drive pins and anti-noise spring washers• Class 12.9 hardware for high torque load capacity• Reusable aluminum hats – replace iron rings when worn• Reduced unsprung and rotational mass for improved handling• Sold/priced per pair Vehicle Fitment • BMW F80 M3 / F82–F83 M4 (including CS with optional carbon ceramic package – gold calipers)• BMW F87 M2 / M2 Competition (red or silver calipers)• BMW F87 M2 CS (optional carbon ceramic package – gold calipers)• Note: Vehicles with blue calipers require a different rotor size, available separately. Girodisc A2-220 Rear Rotors – BMW F8X M2 / M3 / M4 FAQs Do these rotors fit OEM calipers? Yes. The A2-220 rotors bolt directly to factory calipers and hubs with no modifications needed. Can I use these to replace carbon ceramic rotors? Absolutely. This kit is designed to replace OEM carbon ceramics with Girodisc’s high-performance iron rotors. It’s a simple bolt-on conversion that reduces cost and improves heat capacity. Do I need to change brake pads? Yes. When converting from carbon ceramic to iron rotors, use pads specifically designed for iron discs to ensure proper friction and performance. What are the benefits of a two-piece floating design? The floating mount system allows for thermal expansion without warping or cracking, maintaining smooth, consistent braking and extending rotor life. Are replacement rings available? Yes. Girodisc offers replacement cast-iron rings that allow you to reuse your aluminum hats and hardware, reducing long-term cost. Are these rotors noisy? No. Anti-noise spring washers prevent rattling when cold while allowing proper float when hot. Upgrade your braking performance and reduce long-term maintenance costs with the Girodisc A2-220 2-Piece Rear Brake Rotors (380mm)—precision-engineered for BMW’s F8X M2, M3, and M4 platforms.

D1-157 Girodisc BMW E9X M3 Front Replacement Rings Restore the high-performance braking balance of your BMW M3 with Girodisc D1-157 380mm front replacement rings. These precision-machined components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is made from Girodisc’s proprietary high-carbon cast iron, delivering exceptional cooling capacity, consistent pedal feedback, and fade-free performance under repeated heavy braking. Vehicle Fitment Compatible with:• BMW E90 M3 Sedan (2008–2011)• BMW E92 M3 Coupe (2008–2013)• BMW E93 M3 Convertible (2008–2013)Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or carbon-ceramic conversions. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• CNC-machined from high-carbon cast iron for improved thermal stability and durability• Directional curved vanes maximize airflow and rotor cooling• Maintains factory brake bias, ABS, and DSC calibration• Precision-balanced for vibration-free braking performance• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair Girodisc D1-157 BMW E9X M3 Front Ring FAQs Do these fit the OEM M3 rotor hats? No. These are designed only for Girodisc aluminum hats and will not fit OEM one-piece rotors or carbon-ceramic conversions. What pad compounds are recommended for this setup? For street use, Ferodo DS2500 or Hawk HPS 5.0 pads work well. For track days, Pagid RS29 or Endless MX72 provide stable friction and fade resistance. What torque should be used for the floating hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite. After the first track session, recheck hardware torque for consistency. Do these rotors improve braking feel? Yes. The two-piece floating design reduces unsprung weight and improves pedal modulation by managing heat transfer more efficiently than factory rotors. Upgrade your BMW E9X M3’s braking system with Girodisc D1-157 380mm front replacement rings — engineered for endurance, balance, and precision braking on both street and circuit.

D1-114 Girodisc BMW E9X 335i Front Rings Restore confidence in your BMW’s braking performance with Girodisc D1-114 355mm front replacement rings. These precision-engineered components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is machined from Girodisc’s proprietary high-carbon cast iron alloy, delivering enhanced cooling, fade resistance, and consistent pedal feedback for both street and track use. Vehicle Fitment Compatible with:• BMW E90 335i Sedan (2007–2011)• BMW E92 335i Coupe (2007–2013)• BMW E93 335i Convertible (2007–2013)• Compatible with models equipped with OEM Performance Brake Package or Girodisc two-piece front rotorsNote: Designed exclusively for Girodisc 355mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic discs. Features • Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 355mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior strength and heat control• Directional curved vanes improve airflow and cooling during extended braking• Maintains OEM brake bias, ABS, and DSC calibration• Precision-balanced for vibration-free operation and consistent modulation• Designed exclusively for Girodisc aluminum hats Specifications • Diameter: 355 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-114 BMW E9X 335i Front Ring FAQs Can these be installed with OEM BMW rotor hats? No. The D1-114 rings are designed for Girodisc aluminum hats only and will not fit factory one-piece rotors. Which brake pads are ideal for this setup? For street use, Ferodo DS2500 or Hawk HPS 5.0 pads provide quiet operation and smooth bite. For track use, Pagid RS29 or Carbotech XP10 offer consistent friction under high heat. What torque should be applied to the hardware? Torque each bolt to 12 ft-lbs (16 Nm) using blue Loctite, and recheck after one full heat cycle or initial track session. Are these rotors directional? Yes. Each rotor is labeled for left and right installation, ensuring the curved vanes circulate air efficiently for maximum cooling performance. Upgrade your BMW 335i’s braking system with Girodisc D1-114 355mm front replacement rings — designed for precision, cooling, and reliability on the street or track.

Girodisc BMW F8X Essex/AP BBK Front Replacement Rings  Restore your BMW M3 or M4’s braking power with Girodisc D1-194 front replacement rings for the Essex/AP Racing big brake kit (A1-194). These 372 mm high-carbon cast-iron rings are direct replacements for the original Girodisc/AP rotor assemblies, designed to bolt onto existing aluminum hats using the included floating hardware kit. Engineered for maximum cooling efficiency and consistent pedal feel, they’re the ideal service solution for track-focused M cars. Vehicle Fitment Compatible with:• BMW F80 M3 (Front)• BMW F82 / F83 M4 (Front)• BMW M2 Competition (F87, Front)Note: Designed for the Essex/AP Racing big brake kit using Girodisc A1-194 rotor assemblies. Not compatible with OEM or other aftermarket rotors. Features • Sold as a left/right pair with full floating hardware kit• Direct replacements for Girodisc 372 mm AP Racing BBK rotors• CNC-machined from high-carbon cast iron for exceptional thermal stability• Directional curved vanes maximize airflow and heat dissipation• Maintains brake balance and ABS calibration for both street and track setups• Precision-balanced for smooth, vibration-free braking• Designed for Girodisc aluminum hats used in Essex/AP Racing BBK systems Specifications • Diameter: 372 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair Girodisc D1-194 BMW F8X Essex/AP BBK Front Replacement Ring FAQs Are these rings compatible with OEM M3/M4 rotors? No. They’re designed only for Girodisc aluminum hats used in the Essex/AP Racing big brake kit. Will these fit the AP Racing CP9660 calipers? Yes. They’re designed for the A1-194 rotor assemblies paired with AP CP9660 front calipers in the Essex/AP BBK. Can these handle full track use with race pads? Absolutely. The D1-194 rings are engineered for high thermal stress and work flawlessly with aggressive pad compounds. Do they require new hats or just rings? You can reuse your existing Girodisc hats; these rings bolt directly on using the included hardware kit. Refresh your BMW M3 or M4’s Essex/AP Racing BBK with Girodisc D1-194 front replacement rings — precision-engineered for cooling, longevity, and race-proven performance on every lap.

Girodisc BMW E9X 335i Rear Rings Maintain the precise braking feel of your BMW 335i with Girodisc D2-114 rear replacement rings. These direct-fit 328mm rings are designed to bolt onto your existing Girodisc aluminum hats, letting you replace only the rotor surface instead of the full assembly. Each set includes both left and right rings plus a complete floating hardware kit, restoring your braking performance to factory-fresh condition. Vehicle Fitment Compatible with:• BMW 335i / 335is (E90 / E92 / E93 chassis)• BMW 335d (E90 chassis)Note: For vehicles equipped with Girodisc 328mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors. Features • Sold as a left/right pair with new hardware kit• Direct replacements for Girodisc 328mm two-piece rear rotors• CNC-machined from high-carbon cast iron for improved heat capacity• Directional curved vanes enhance cooling efficiency• Maintains OEM brake bias and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands Specifications • Diameter: 328mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair• MSRP: $680.00 Girodisc D2-114 Replacement Ring FAQs Will these fit OEM BMW rotors? No. These are designed specifically for Girodisc two-piece rotor systems and will not bolt to factory rotors. Are both sides included? Yes. Each D2-114 kit includes both left and right replacement rings plus a complete hardware set. Why replace only the rings? Replacing just the rings saves cost and retains your Girodisc hats, providing consistent braking and reduced unsprung weight. Do I need to replace the hardware? Yes. Always use the supplied new hardware to ensure safe and precise installation. Upgrade your BMW E9X 335i braking system with Girodisc D2-114 rear replacement rings — precision-engineered for thermal efficiency, strength, and fade-free performance on both street and track.

Girodisc BMW F8X 368mm Rear Replacement Rings Bring your BMW’s braking performance back to peak condition with Girodisc D2-186 rear replacement rings. Designed as direct replacements for Girodisc two-piece 368mm rotors, these precision-engineered rings restore the balance, cooling, and bite that performance driving demands—whether on the street or at the track. Vehicle Fitment Compatible with:• BMW F80 M3 (2015–2018)• BMW F82 M4 (2015–2020)• BMW F83 M4 Convertible (2015–2020)• BMW F87 M2 Competition (2019–2021)• BMW F87 M2 CS (2020–2021)Note: For vehicles originally equipped with iron rotors. These rings attach directly to Girodisc aluminum hats using the included floating hardware kit. Precision-Machined for High Performance Each Girodisc rotor ring is cast from a proprietary high-carbon iron alloy and machined entirely in the USA. The directional curved vanes draw cooling air through the rotor for exceptional temperature control under hard braking. This design minimizes fade, maintains pedal feel, and extends pad life—perfect for both road and track environments. Features • Direct replacements for Girodisc 368mm rear rotors• Compatible with BMW F8X M3/M4 and F87 M2 Competition & CS• Proprietary high-carbon cast iron construction• Directional curved vane design for optimal cooling• Machined, balanced, and finished in the USA• Includes complete floating hardware kit• Sold/priced per pair Specifications • Diameter: 368mm• Position: Rear• Material: High-carbon cast iron• Includes: Two rotor rings and new hardware kit• Made in the USA• Sold/priced per pair Girodisc D2-186 Replacement Ring FAQs Do these fit factory BMW rotors? No. These are designed exclusively for Girodisc two-piece rotor assemblies and will not fit OEM rotors. Are these track-ready? Yes. Girodisc rotors are engineered to deliver consistent performance and cooling during high-speed, high-temperature driving. Is new hardware included? Yes. Each pair ships with fresh floating hardware for secure installation. When should I replace the rings? Replace when the rotor surface is below minimum thickness or cracks extend to the outer edge. Rebuild your braking system with Girodisc D2-186 rear replacement rings—precision-engineered for BMW M performance and proudly made in the USA.

Girodisc BMW E9X 335i Rear Rotors Upgrade your BMW 335i’s braking system with Girodisc’s lightweight two-piece rear rotors, precision-engineered to deliver sharper response, improved cooling, and reduced unsprung mass. Designed as a true OEM replacement, these rotors enhance both street comfort and track performance without altering factory balance or ABS calibration. Vehicle Fitment BMW 335i (E90 Sedan / E92 Coupe / E93 Convertible, 2007–2013)BMW 335is (E92 / E93, 2011–2013)Compatible with OEM single-piston rear calipers and factory hardware. Engineered for Precision and Performance The Girodisc system installs directly onto your vehicle with no modifications required. Each rotor features a 6061-T6 aluminum hat mated to Girodisc’s proprietary cast-iron friction ring for optimal thermal stability. The floating two-piece design allows even heat expansion, preventing warping and maintaining consistent pedal feedback. Curved internal vanes act as centrifugal pumps, channeling air through the rotor to maximize cooling efficiency and durability under repeated heavy braking. Features • Direct OEM replacement – bolts to factory hubs• 6061-T6 billet aluminum hats with hard-anodized finish• Proprietary cast-iron friction rings cast and machined in the USA• Floating mount system with cadmium-plated steel drive pins• Anti-noise spring washers eliminate rattle while maintaining float• Curved vane internal design enhances cooling• Significantly lighter than OEM rotors for reduced unsprung weight• Fully rebuildable – replace only the iron rings when worn• Sold/priced per pair Girodisc A2-114 Rear Rotor FAQs: Do these rotors fit all E9X 335i models? Yes. They fit the E90, E92, and E93 BMW 335i and 335is models equipped with factory brake systems. Will I need to change my pads? No. Girodisc rotors are designed to work seamlessly with your existing OEM or performance pads. What benefits will I notice after installation? Expect smoother pedal feel, improved brake modulation, and faster cooling between stops thanks to reduced mass and enhanced airflow. Are these suitable for daily use and track days? Absolutely. Girodisc rotors are engineered for dual-purpose performance—quiet and reliable on the street, yet resilient enough for track sessions. Transform the braking performance of your E9X BMW with Girodisc rear rotors—crafted for drivers who demand precision, balance, and performance at every stop.

BMW E9X 335i Front Rotors Upgrade your BMW E9X 335i’s stopping power with Girodisc 2-piece floating front rotors — a direct bolt-on replacement designed to outperform the factory setup. No modifications are needed; these rotors mount seamlessly to your OEM calipers while preserving factory brake balance and ABS functionality. The Girodisc design cuts significant unsprung and rotational mass, improving handling, throttle response, and overall braking feel. Each rotor features a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary high-carbon cast-iron rings. The internal curved vane pattern is engineered to act as a centrifugal pump, drawing air through the rotor to dissipate heat under extreme conditions — from spirited canyon drives to full track sessions. Precision-Crafted for Performance Vehicle Fitment BMW E90 / E92 / E93 335i BMW E90 / E92 / E93 335is Girodisc A1-114 Features Direct replacement design: Bolts to OEM calipers with no modifications or spacers required. Lightweight construction: Reduces unsprung weight for improved suspension response and steering feedback. Curved vane cooling: Efficiently channels air through the disc for better heat dissipation and fade resistance. Floating mount hardware: Uses cadmium-plated drive pins and anti-noise spring washers to manage thermal expansion silently. Serviceable two-piece design: Replace only the iron rotor rings when worn, reducing long-term cost. Made in the USA: All materials are sourced, cast, and machined in-house by Girodisc for consistent quality. Girodisc A1-114 FAQs Will these rotors fit my stock calipers? Yes. They’re a direct-fit upgrade that works perfectly with OEM 335i calipers. Do I need to change brake pads? No. Your existing OEM or performance pads will fit without modification. Are these rotors suitable for track days? Absolutely. The curved vane design ensures consistent braking and cooling under track conditions. Do they make noise like other floating rotors? No. Girodisc uses anti-noise spring washers to eliminate rattling while allowing full float under heat. How are they sold? Sold and priced per pair. Bring your BMW’s braking to the next level with Girodisc front rotors — lighter, cooler, and engineered to deliver track-proven performance with factory-level refinement.