FOR 2015-2020 BMW M3 M4 F80 F82 F83 380MM GIRODISC 2-PIECE FRONT BRAKE ROTORS
Welcome to Pro-Motive Concepts LLC. We specialize in Auto and Truck parts and accessories. We have a wide selection of air intakes, exhaust, body parts, suspension kits, clutches, ECU upgrades, turbo kits and more in stock for your vehicle! BRAND NEW IN BOX GiroDisc Performance 380mm Front Brake Rotor Disc Set (Pair) Fits 2015-2018 BMW M3 with standard brakes Blue Calipers/Iron Rotors Fits 2015-2020 BMW M4 with standard brakes Blue Calipers/Iron Rotors Fits 2016-2018 BMW M2 with standard brakes Blue Calipers/Iron Rotors This Girodisc system is a replacement for the OE 380mm discs on the front of the F80 M3 / F82 M4 / F83 M4 / F87 M2 models that have the factory standard brakes with blue calipers. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. IMPORTANT NOTE: This application is only for the F8X M2, M3 and M4 cars equipped with the standard brake option. The standard brake option vehicles have blue calipers and iron rotors. If your calipers are silver, red, or gold then these are not the correct rotor size for your vehicle. The central hat section of the rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes curved directional vanes, developed in racing to act as a centrifugal pump to force cooling air through the disc. The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads. Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Sold/priced per pair. GiroDisc specializes in engineering and manufacturing two-piece rotor solutions for various applications, from the Subaru WRX to the Lamborghini Aventador. Direct bolt-on two-piece rotors from GiroDisc are lightweight, reducing an average of four to eight pounds of unsprung weight, and offer superior heat dissipation over traditional one-piece rotors, translating to improved braking performance and eliminating the likelihood of stress fractures in the rotor surface with repeated heat cycles. GiroDisc also offers replacement rotor rings compatible with several popular big brake kit manufacturers, including replacement hardware at no additional cost. The GiroDisc team believes that brake rotors are often overlooked in performance car braking systems. Originally founded in 2003, the company made its mission to design and manufacture two-piece brake rotors that would perform flawlessly at the limits. By specializing in this area, the company is able to dedicate itself to achieving the highest levels of engineering and manufacturing in the market. GiroDisc rotors are made of 6061-T6 aluminum for the central "hat" section, with the discs themselves being cast iron to the exact specifications used in professional racing organizations, all designed and manufactured completely in-house using solely US-sourced raw materials. GiroDisc rotors require no additional modification to the braking system and include any additional parts such as caliper spacers and longer bolts in the kit if needed. Free UPS/FedEx shipping to the lower 48 United States! All other customers please contact us for a shipping quote. Images are for display purposes and may not be application specific. Stock photography may not depict actual product. Check out our store for more BMW racing and performance parts! Be sure to add us to your favorites list!
Specifications
| Restocking Fee | 20% |
| Return Shipping Will Be Paid By | Buyer |
| Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 30 Days |
| Refund Will Be Given As | Money Back |
| Brand | GiroDisc |
| Type | Brake Disc Rotor |
| Item Height | 380 mm |
| Manufacturer Part Number | A1-186 |
| Rotor Outside Diameter | 380mm |
| Rotor Style | Slotted |
| Placement On Vehicle | Front |
| Performance Part | Yes |
Welcome to Pro-Motive Concepts LLC. We specialize in Auto and Truck parts and accessories. We have a wide selection of air intakes, exhaust, body parts, suspension kits, clutches, ECU upgrades, turbo kits and more in stock for your vehicle! BRAND NEW IN BOX GiroDisc Performance 380mm Front Brake Rotor Disc Set (Pair) Fits 2015-2018 BMW M3 with standard brakes Blue Calipers/Iron Rotors Fits 2015-2020 BMW M4 with standard brakes Blue Calipers/Iron Rotors Fits 2016-2018 BMW M2 with standard brakes Blue Calipers/Iron Rotors This Girodisc system is a replacement for the OE 380mm discs on the front of the F80 M3 / F82 M4 / F83 M4 / F87 M2 models that have the factory standard brakes with blue calipers. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. IMPORTANT NOTE: This application is only for the F8X M2, M3 and M4 cars equipped with the standard brake option. The standard brake option vehicles have blue calipers and iron rotors. If your calipers are silver, red, or gold then these are not the correct rotor size for your vehicle. The central hat section of the rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes curved directional vanes, developed in racing to act as a centrifugal pump to force cooling air through the disc. The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads. Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Sold/priced per pair. GiroDisc specializes in engineering and manufacturing two-piece rotor solutions for various applications, from the Subaru WRX to the Lamborghini Aventador. Direct bolt-on two-piece rotors from GiroDisc are lightweight, reducing an average of four to eight pounds of unsprung weight, and offer superior heat dissipation over traditional one-piece rotors, translating to improved braking performance and eliminating the likelihood of stress fractures in the rotor surface with repeated heat cycles. GiroDisc also offers replacement rotor rings compatible with several popular big brake kit manufacturers, including replacement hardware at no additional cost. The GiroDisc team believes that brake rotors are often overlooked in performance car braking systems. Originally founded in 2003, the company made its mission to design and manufacture two-piece brake rotors that would perform flawlessly at the limits. By specializing in this area, the company is able to dedicate itself to achieving the highest levels of engineering and manufacturing in the market. GiroDisc rotors are made of 6061-T6 aluminum for the central “hat” section, with the discs themselves being cast iron to the exact specifications used in professional racing organizations, all designed and manufactured completely in-house using solely US-sourced raw materials. GiroDisc rotors require no additional modification to the braking system and include any additional parts such as caliper spacers and longer bolts in the kit if needed. Free UPS/FedEx shipping to the lower 48 United States! All other customers please contact us for a shipping quote. Images are for display purposes and may not be application specific. Stock photography may not depict actual product. Check out our store for more BMW racing and performance parts! Be sure to add us to your favorites list!
