The Wilwood Forged Superlite FSL4R/ST caliper is built for sustained hard braking and heavy-duty use. Differential-bore pistons reduce pad taper wear under load, and Thermlock pistons in ST models limit heat transfer to caliper fluid and seals by up to 25% versus standard pistons. A wear-resistant Type III hard anodize finish and design focus make these calipers suitable for dirt, asphalt oval, off-road, rally and road course environments.
Wilwood Caliper-Forged Superlite FSL4R/ST Aluminum 1.88/1.75in Pistons .81in Disc Ano - Right