The Wilwood FSLI Superlite caliper represents the pinnacle of racing brake technology, widely used in short track, late model, modified, open wheel, road-race, off-road, rally, and high-performance street applications. This advanced 6-piston caliper delivers exceptional stopping power with reduced pedal travel through innovative engineering and premium materials.
Stress-Flow Forged Construction:
Each caliper body is stress-flow forged from premium grade aluminum alloy billets, a manufacturing process that re-aligns the metal's internal grain structure to flow within the contour of the caliper body. This eliminates the stresses and grain structure interruptions that occur when machining straight block billets, resulting in superior strength and deflection resistance under extreme braking loads.
Advanced FSL Body Design:
- Computer-generated solid modeling and stress analysis optimized design
- Closed end bridges with radial transition to piston housings eliminate stress concentrations
- Center bridge bolts replace cotter pins for positive pad retention and quick access
- Proven superior clamping force and reduced volume displacement in laboratory testing
- Direct replacement for Wilwood Superlite and competitive calipers with 3.50" centered mounting tabs
Premium Performance Features:
- Replaceable SRS stainless steel bridge plates eliminate bridge wear from pad gouging and extend caliper service life
- Spring-loading action of SRS plates eliminates pad rattle and dampens vibration harmonics that cause brake squeal
- Stainless steel pistons resist corrosion and retard heat transfer from brake pads
- High-temperature square-faced O-ring seals provide positive sealing, controlled piston retraction, and extended service life
- Two-piece bleed screw assemblies for reliable service and easy replacement
Specifications:
- Available in multiple piston sizes: 1.75", 1.62", 1.38", 1.25", and 1.12"
- Compatible with .81", 1.10", and 1.25" rotor widths
- Uses 7420 type bridge bolt brake pads (same as all Superlite 6-piston calipers)
- Full range of Wilwood PolyMatrix pad compounds available
- 3.50" centered mounting tab spacing
This FSLI caliper combines cutting-edge forging technology with proven Wilwood performance features to deliver superior stopping power, increased durability, and reduced maintenance in the most demanding racing and high-performance applications.