2-Piece Brake Rotors
2-piece performance rotors offer some significant advantages, such as reduced weight as well as better heat dissipation, partly from the aluminum hat acting as a heat sink. Some two-piece rotors also offer increased airflow through the rotor because of the more open design where the hat meets the rotor face. Another big advantage is the ability to replace only the friction ring while reusing the center bell. This can add up to quite some cost savings in many cases. More info
- A1-139SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):350,0Disc Finish:Curved SlottedDisc Height (mm):63,0Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:28,0Min Thickness:26,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-139SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):350,0Disc Finish:Curved SlottedDisc Height (mm):63,0Disc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:28,0Min Thickness:26,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A2-045SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):295,0Disc Finish:Straight SlottedDisc Height (mm):44,0Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:10,0Min Thickness:8,3Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A2-045SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):295,0Disc Finish:Straight SlottedDisc Height (mm):44,0Disc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:10,0Min Thickness:8,3Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-045SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):326,0Disc Finish:Straight SlottedDisc Height (mm):51,0Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:30,0Min Thickness:28,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-045SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):326,0Disc Finish:Straight SlottedDisc Height (mm):51,0Disc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:30,0Min Thickness:28,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A2-272SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):380Disc Finish:Curved SlottedDisc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:30Min Thickness:28Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A2-272SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):380Disc Finish:Curved SlottedDisc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:30Min Thickness:28Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- APP 2-Piece rotor kitManufacturer:APPDisc Diameter (mm):370Disc Finish:Straight SlottedDisc Contruction:2-Piece FloatingDisc Side:Left/RightMax Thickness:34Min Thickness:32Disc Quality:PremiumMaterial:Cast IronPackage Contents:2x Brake Discsloading...
- A1-032SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):350,0Disc Finish:Curved SlottedDisc Height (mm):70,0Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:34,0Min Thickness:32,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-032SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):350,0Disc Finish:Curved SlottedDisc Height (mm):70,0Disc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:34,0Min Thickness:32,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-136SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):330,0Disc Finish:Curved SlottedDisc Height (mm):64,0Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:28,0Min Thickness:26,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-136SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):330,0Disc Finish:Curved SlottedDisc Height (mm):64,0Disc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:28,0Min Thickness:26,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A2-032SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):350,0Disc Finish:Curved SlottedDisc Height (mm):75,0Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:28,0Min Thickness:26,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A2-032SR - GiroDisc 2-Piece Rotor Assembly; RightManufacturer:GirodiscDisc Diameter (mm):350,0Disc Finish:Curved SlottedDisc Height (mm):75,0Disc Contruction:2-Piece FloatingDisc Side:RightMax Thickness:28,0Min Thickness:26,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
- A1-233SL - GiroDisc 2-Piece Rotor Assembly; LeftManufacturer:GirodiscDisc Diameter (mm):370,0Disc Finish:Curved SlottedDisc Height (mm):49,9Disc Contruction:2-Piece FloatingDisc Side:LeftMax Thickness:32,0Min Thickness:30,0Disc Quality:PremiumMaterial:Cast IronPackage Contents:1x Brake Discloading...
Fixed vs Floating assemblies: What are the differences?
Fixed
Although not having the advantages of a fully floating assembly, 2-piece rotors that use a fixed rotor to hat assembly do offer one of the most significant advantages that 2-piece rotors offer; reduced weight. By making the center-section of the disc out of aluminum, a great deal of weight can be saved in a key location, as it is both unsprung and rotating. Another advantage to this construction is reduced heat-transfer to the vehicle’s hub and wheel bearings. While overheating wheel bearings in street-use isn’t normally a concern, it certainly can be when driving on the racetrack. Because of the more simple rotor to hat assembly design, fixed 2-piece rotors are often also cheaper as to their fully floating counterparts.
Floating
The greatest advantage lies in the float itself. The brake discs must cope with extreme temperature levels. In some cases, the disc temperatures can exceed 600℃. When a material is heated it expands, and due to the large temperature change experienced in brake discs, this effect can be significant. In the case of a non-floating disc, not all of the material heats up uniformly. The center-section of the disc remains relatively cool compared to the braking surfaces. This temperature difference causes thermal stresses to develop which lead to warping of the disc and cupping of the braking surface, as well as increased crack potential. With the full-floating system, the disc is free to grow relative to the bell, and can remain straight and true.
Login and Registration Form