The AP Racing CP6720 and CP6730 range of 4 piston brake calipers were developed for rally use, specifically S2000 or rally raid vehicles. Suitable for use on either the front or rear axle the calipers have no external bridge pipe and feature protected bleed screws. this makes them less prone to damage on gravel stages. The body is a piece aluminium alloy design and houses aluminium pistons. Suitable for disc sizes 285-355mm.Designed for rally use on front or rear axlesNo external bridge pipe and protected bleed screws prevent damage from stones and other debrisTwo piece aluminium alloy body for low weight and high strengthAluminium pistonsAP Racing CP6720 and CP6730 calipers all share the same features apart from piston sizes:CP6720 piston size - 34.9mm x 2 / 41.3mm x 2, piston area - 45.93cm²CP6730 piston size - 31.8mm x 4, piston area - 31.66cm²Caliper SpecificationsMin Disc Dia285mmMax Disc Dia355mmDisc Thickness28mmPiston DiaSee details abovePiston AreaSee details aboveInlet PortM1