D2 Racing Big Brake Kit Specifications Born from competition D2 Racing big brake kits now come with new generation forged aluminum calipers and are available in diameter from 286 to 444 mm. With their new hollow design these new D2 Racing brake calipers offer an innovative architecture featuring minimum caliper weight with maximum rigidity. This hollow design also ensures better heat dissipation and is inspired by current supercars technologies. » Kit contents: 2 x forged 4-pot monoblock aluminium brake calipers in black 2 x vented discs slotted with aluminium bells 1 x set of brake pads 2 x braided brake hoses All required mounting components (brackets bolts instructions etc) Every D2 Racing caliper is covered by a 2-year warranty. » Brake pads options This D2 Racing brake kit comes with sport pads as standard : mixed use road and circuit better response (coefficient of friction of 0.46 to 0.55 stable up to 600°C). We can also supply after market brake pads from all major suppliers such as Carbone Lorraine AP Racing Ferodo EBC Pagid etc... » Minimum wheel sizes For clearance you must use the correct size wheels with your brake kit please refer to the below table : Disc diameter (mm) 286 304 330 356 380 400 421 444 Minimum wheel diameter (inches) 15 16 17 18 19 20 21 22 It is your responsibility to ensure correct wheel clearance. Some setups may require wheel spacers. Please contact us for information regarding fitment brake templates can be provided if necessary.