Wilwood 120-13265 FSL4R-ST Right Hand Forged Superlite Caliper

The Wilwood FSL4R-ST is a forged superlite four-piston disc brake caliper designed for high-performance applications requiring sustained hard braking. This right-hand configuration features Thermlock® pistons for ultimate heat protection and differential bore piston technology for optimized pad wear performance.

Key Features:

• Forged aluminum construction with Type III hard anodize finish for superior wear resistance
• Thermlock® pistons provide exceptional heat insulation and resistance to fluid boiling
• Differential bore pistons optimize pad wear and braking efficiency
• Internal fluid ports eliminate external crossover tubes for cleaner installation
• Dual bleed screw assemblies for efficient bleeding and left/right orientation flexibility
• Closed-end bridge design with radial transitions increases body strength and reduces deflection under load
• Lightweight forged construction weighs approximately 4.4 pounds assembled
• Computer-optimized design maximizes strength-to-weight ratio

Ideal for dirt and asphalt oval track racing, off-road, rally, and road course applications where consistent braking performance under extreme conditions is critical. The stress-flow forged body from premium aluminum alloy delivers professional-grade durability and performance.