Wilwood ST FSL4R Caliper for 1.88/1.75 Inch Pistons and 1.25 Inch Rotor – High-Performance Brake Component

Description

The Wilwood ST FSL4R caliper is engineered for demanding braking applications, offering superior pad wear performance with differential bore pistons that help manage mechanical loading and temperature variances across the pad face. This design reduces taper wear during sustained high-temperature conditions, making it ideal for off-road, rally, and road course racing on dirt and asphalt ovals. The caliper features Thermlock® pistons in the ST models, which significantly reduce heat transfer from the pads to the caliper, fluid, and seals, lowering operating temperatures by up to 25% compared to standard stainless steel pistons. This heat management capability enhances durability and performance under intense braking conditions. Additionally, the caliper’s Type III hard anodize finish provides excellent wear resistance, ensuring long-lasting performance even in harsh environments. This caliper is compatible with 1.88 and 1.75-inch pistons and designed to fit 1.25-inch rotors, making it a versatile choice for high-performance automotive applications. Whether for racing or off-road use, the Wilwood ST caliper delivers consistent and reliable braking performance. Its robust construction and advanced heat management features make it a go-to component for enthusiasts seeking durability and precision in demanding conditions.

Features:

• Differential bore pistons to optimize pad wear and reduce taper in high-temperature applications

• Thermlock® pistons in ST models for up to 25% heat transfer reduction, enhancing durability

• Type III hard anodize finish for wear resistance and long service life

• Compatible with 1.88 and 1.75 inch pistons and 1.25 inch rotors for versatile installation

• Designed for sustained hard braking on dirt, asphalt ovals, off-road, rally, and road courses