The CP6840 4 piston caliper is part of the AP Racing range of forged monobloc Radi-Cal calipers which are incredibly rigid and lightweight with superior dynamic performance. Stainless steel pistons are used which allows the calipers to perform in very high temperatures. Ideal for use on WRC turbo, S2000 rally cars this range of calipers are manufactured to meet the FIA R4T and R5 price cap.Forged monobloc alloy body for increased stiffness and reduced weightStainless steel pistons for high temperature useInternally portedSuperior dynamic performanceDucted air cooling to reduce caliper temperatureBuilt in bleed screw and brake pipe protectionMin Disc Dia300mmMax Disc Dia355mmDisc Thickness32.0mmPiston Dia34.9mm x 2 / 41.3 x 2Piston Area45.9 cm3Inlet PortM10 x 1 or Push onMount TypeRadialMounting Centes180mmMounting Offset42.0mmMounting Hole Dia10.2mmA wide range of pad compounds are available to fit the AP racing CP6840 caliper, see our Motorsport brake pads category.Calipers are handed