The Wilwood Type III anodized right-side XRZ4R caliper is specified with 1.88" and 1.75" piston sizes and is intended to work with a 1.25" disc. This XRZ4R caliper is presented as an application-specific brake component that pairs specified piston diameters with compatible rotor thicknesses, suitable for custom brake assemblies requiring those dimensional characteristics.
Wilwood Caliper Type III Ano Right XRZ4R 1.88in/1.75in Piston 1.25in Disc