GiroDisc 2-Piece Slotted Rear Iron Rotor Conversion - BMW M3 / M4 G8x 2021-2025
Fitment Note:Ā Use these rotors with the factory iron pad shape.
These GiroDisc 2-piece rotors are aĀ direct replacement for the 380mm carbon ceramic rear rotorsĀ on the BMW G8X M3 & M4. Our 2-piece, fully floating assemblies utilize the factory calipers and require no modifications other than switching the rotors and pads. These rotors use theĀ factory iron pad shape with the carbon ceramic calipers. Please contact us if you need help finding pads.
The rotor rings are machined from a proprietary casting made of high-carbon iron formulated to GiroDiscās specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The 2-piece design means a reusable hat which can be attached to new rings (part number D2-322) when they need to be replaced.
All major components including the hats, rotor rings, and drive pins are manufactured in-house at our facility in Bellingham, WA from domestically sourced materials. The hat is made from 6061-T6 aluminum and coated in a black anodize finish. The drive pins are made from a high-strength steel alloy and cadmium-plated for corrosion resistance. All rotors are assembled with spring clips and Belleville washers for race-ready float while also being street-friendly with no noise from loose hardware.
The minimum thickness at which we recommend replacing these rings is 26mm. We also recommend replacing them if a crack leads to the edge of the ring.
Sold and priced per pair.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
GiroDisc 2-Piece Slotted Rear Iron Rotor Conversion - BMW M3 / M4 G8x 2021-2025
GiroDisc 2-Piece Slotted Rear Iron Rotor Conversion - BMW M3 / M4 G8x 2021-2025
Fitment Note:Ā Use these rotors with the factory iron pad shape.
These GiroDisc 2-piece rotors are aĀ direct replacement for the 380mm carbon ceramic rear rotorsĀ on the BMW G8X M3 & M4. Our 2-piece, fully floating assemblies utilize the factory calipers and require no modifications other than switching the rotors and pads. These rotors use theĀ factory iron pad shape with the carbon ceramic calipers. Please contact us if you need help finding pads.
The rotor rings are machined from a proprietary casting made of high-carbon iron formulated to GiroDiscās specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The 2-piece design means a reusable hat which can be attached to new rings (part number D2-322) when they need to be replaced.
All major components including the hats, rotor rings, and drive pins are manufactured in-house at our facility in Bellingham, WA from domestically sourced materials. The hat is made from 6061-T6 aluminum and coated in a black anodize finish. The drive pins are made from a high-strength steel alloy and cadmium-plated for corrosion resistance. All rotors are assembled with spring clips and Belleville washers for race-ready float while also being street-friendly with no noise from loose hardware.
The minimum thickness at which we recommend replacing these rings is 26mm. We also recommend replacing them if a crack leads to the edge of the ring.
Sold and priced per pair.
Original: $1,350.00
-65%$1,350.00
$472.50Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Fitment Note:Ā Use these rotors with the factory iron pad shape.
These GiroDisc 2-piece rotors are aĀ direct replacement for the 380mm carbon ceramic rear rotorsĀ on the BMW G8X M3 & M4. Our 2-piece, fully floating assemblies utilize the factory calipers and require no modifications other than switching the rotors and pads. These rotors use theĀ factory iron pad shape with the carbon ceramic calipers. Please contact us if you need help finding pads.
The rotor rings are machined from a proprietary casting made of high-carbon iron formulated to GiroDiscās specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The 2-piece design means a reusable hat which can be attached to new rings (part number D2-322) when they need to be replaced.
All major components including the hats, rotor rings, and drive pins are manufactured in-house at our facility in Bellingham, WA from domestically sourced materials. The hat is made from 6061-T6 aluminum and coated in a black anodize finish. The drive pins are made from a high-strength steel alloy and cadmium-plated for corrosion resistance. All rotors are assembled with spring clips and Belleville washers for race-ready float while also being street-friendly with no noise from loose hardware.
The minimum thickness at which we recommend replacing these rings is 26mm. We also recommend replacing them if a crack leads to the edge of the ring.
Sold and priced per pair.
