Wilwood 120-11130-BK Forged Superlite 6 Piston Radial Mount Brake Caliper Black

The Wilwood Forged Superlite 6 (FSLI) caliper represents the pinnacle of brake caliper engineering for short track, late model, modified, open wheel, road-race, off-road, rally and sport driving applications. This innovative caliper combines stress-flow forged construction with advanced design features to deliver superior stopping power and exceptional durability.

Stress-Flow Forged Construction:

Each caliper body is stress-flow forged from premium grade aluminum alloy billets. This advanced forging process re-aligns the metal's internal grain structure to flow within the contour of the caliper body, eliminating the stresses and grain structure interruptions that occur with traditional machined billet construction. The result is the strongest possible aluminum caliper body available.

Advanced FSL Body Design:

• Computer-generated solid modeling and stress analysis optimization
• Closed end bridges with radial transition to piston housings
• Eliminates machined steps and sharp shoulders for increased strength
• Center bridge bolts replace cotter pins for quick pad access and positive retention
• Measurably reduced deflection under load for improved pedal feel

Premium Performance Features:

• Replaceable SRS stainless steel bridge plates eliminate pad gouging and extend caliper life
• SRS plates eliminate pad rattle and dampen vibration harmonics that cause brake squeal
• High-temperature square faced O-ring seals for positive sealing and controlled piston retraction
• Stainless steel pistons resist corrosion and retard heat transfer from pads
• Two-piece bleed screw assemblies for reliable, long-life service
• Black powder coat finish for corrosion resistance and professional appearance

Compatibility and Specifications:

FSLI calipers are direct replacements for all Wilwood Superlite and similar competitive brand calipers with 3.50-inch centered mounting tabs. Uses 7420 type bridge bolt brake pads, with the full range of Wilwood PolyMatrix pad compounds available to match brake response and heat range to any application.

Proven through rigorous clamping force, structural deflection, and volume displacement testing, the FSLI delivers superior strength and efficiency compared to traditional designs. On-track testing confirms better stopping power with less pedal travel for improved driver confidence and control.