The Wilwood PS-1 single-piston caliper is a compact, lightweight cast-aluminum unit weighing approximately 0.93 pounds. It uses two stainless steel deep-cup pistons to reduce heat transfer and high-temperature square piston seals for controlled retraction. Internal crossover fluid passages remove the need for external crossover tubes, and the PS-1 supports rotors from 6.00" to 9.00" in diameter with .15"–.20" thickness.
Wilwood Caliper-PS 1-LH 1.12in Pistons .190in Disc