* Features 4-piston standard-bore stainless steel pistons, CNC-machined to exact tolerances * Caliper bodies are billet aluminum construction with a chrome finish * Kit includes necessary chrome brackets, weld-on mounting tabs, hardware and instructions * For use with 1” or 3/4” axles * Will work with up to a 1 1/2” belt * Rotor hat is an 11 1/2” polished stainless steel rotor with a built-in offset designed to mount between wheel and pulley (sold separately)