Wilwood 120-11133-RD Forged Superlite 6 Piston Front Brake Caliper Red

The Wilwood Forged Superlite 6 (FSL) caliper represents the pinnacle of racing brake technology, combining stress-flow forged construction with proven competition features. This high-performance caliper is engineered for short track, late model, modified, open wheel, road racing, off-road, rally, and sport driving applications where maximum stopping power and pedal feel are critical.

Stress-Flow Forged Construction:

Each caliper body is stress-flow forged from premium grade aluminum alloy billets, a process that re-aligns the metal's internal grain structure to flow within the contour of the caliper body. This eliminates internal stresses and grain interruptions that occur in standard billet machining, creating the strongest possible aluminum caliper body.

Advanced FSL Body Design:

• Computer-generated solid modeling and stress analysis engineering
• Closed end bridges with radial transitions to piston housings
• Eliminates machined steps and sharp shoulders for increased strength
• Superior resistance to deflection under high clamping loads
• Center bridge bolts for positive brake pad retention and quick access

Premium Performance Features:

• Replaceable SRS stainless steel bridge plates eliminate pad gouging and bridge wear
• Spring-loading action dampens vibration and eliminates pad rattle
• High-temperature square faced O-ring seals for positive sealing and controlled piston retraction
• Stainless steel pistons resist corrosion and retard heat transfer
• Two-piece bleed screw assemblies for reliable, long-term service

Compatibility and Specifications:

Direct replacement for all Wilwood Superlite and similar competitive calipers with 3.50-inch centered mounting tabs. Uses 7420 type bridge bolt brake pads compatible with the full range of Wilwood PolyMatrix pad compounds. Available in multiple piston sizes (1.75", 1.62", 1.38", 1.25", 1.12") for various rotor widths (.81", 1.10", 1.25").

Extensive testing has proven the FSL delivers superior stopping power with reduced pedal travel compared to standard billet designs, making it the benchmark choice for serious racers and performance enthusiasts.