Gen 3/4/5 355mm Slotted Rotor Replacement Rings

Gen 3/4/5 355mm Rotor Replacement Rings. Replacement slotted rings with hardware for Girodisc and Stoptech (Gen 4 ACR) hats. Fits front and rear. The disc is made from cast iron, constructed in the USA and is made to the same specification and material as used by professional racing organizations.  It is a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc. Direct replacement for Gen 4 ACR fronts and rears. Sold in Pairs. GD355.32.52