Wilwood - Forged Billet Superlite 4/ST Caliper with Thermlock Pistons

• RS = rear spindle mount
• Differential piston bores
• Increases clamping force & provides even pad wear
• External stiffening ribs
• Fits 1.25" rotors
• 3.5" mounting bolt pattern
• 1/8" NPT inlet

The Superlite caliper series has set the standard for many years in short track, late model, modified and open wheel competition. It has also enjoyed prominence in a variety of road-race, off-road, rally and sport driving applications. Starting at 4.40 pounds, the Forged Billet Superlite-ST (FSL-ST) is the newest innovation to this series from Wilwood. New and adaptive technologies have been applied providing substantial improvements in strength, fluid volume displacement, and overall performance.