The Wilwood PS-1 caliper is a compact, lightweight cast-aluminum brake caliper built for tight-clearance stopping applications. It uses two stainless steel deep‑cup pistons and high‑temperature square piston seals to reduce heat transfer and control retraction. Internal crossover passages eliminate external tubes for a cleaner install. The PS‑1 fits rotors 6.00"–9.00" in diameter with .15"–.20" thickness.
Wilwood Caliper-PS 1-LH 1.00in Pistons .200in Disc