Wilwood Forged Superlite 1.25� Pistons 1.250� Rotor

Forged Superlite Internal
 
The Superlite caliper series is the benchmark in short track, late model, modified and open wheel competition. It also enjoys prominence in a variety of road-race, off-road, rally and sport driving applications. The new FSLI model series is the latest innovation to this Superlite family of calipers. It has been redesigned with internal fluid ports that eliminate the external fluid cross-over tubes, along with any potential problems that could arise from a damaged tube. The transfer tube has been replaced with two additional bleed screw assemblies which allows this group of symmetrical piston bore models to be mounted either right or left in a leading or trailing position.
 
The most noteworthy feature of this new caliper design is the forging. Each body is stress-flow forged from premium grade aluminum alloy billets. Stress-flow forging re-aligns the metal's internal grain structure to flow within the contour of the caliper body. This process eliminates the stresses and interruptions to the internal grain structure that occur when machining a straight block billet. Simply stated, there is no better way to build a stronger aluminum caliper body.
 
The FSL body design is a highly efficient product of computer generated solid modeling and stress analysis technology. Each caliper features closed end bridges with a radial transition to the piston body housings. The elimination of machined steps and sharp shoulders in this critical area provides a measurable increase in overall body strength and resistance to deflection under load. Center bridge bolts replace cotter pins to provide additional support and allow quick access with positive brake pad retention. Clamping force, structural deflection, and volume displacement tests have proven the superior strength and efficiency of the FSL. On-track testing has proven driver satisfaction. The bottom line is better stopping power with less pedal travel.
 
Rotor Compatibility
 
Rotor Width (in) 0.810
Maximum Rotor Width (in) 1.138
Minimum Rotor Width (in) 1.119
Maximum Rotor Diameter(in) 13.06
Minimum Rotor Diameter(in) 11.75
 
Brake Pad Specifications
 
Brake Pad Type 7420
Total Pad Area (in�) 8.2
Total Pad Volume (in�) 4.9
 
Piston Specifications
 
Piston 1 Bore (in) 1.25
Piston 2 Bore (in) 1.25
Total Piston Area (in�) 2.46
 
Mounting Specifications
 
Mount Type Lug
Mount Side Universal
Mount Center(in) 3.50
Mount Hole Size(in) 0.45
Mount Height(in) 2.85
Inlet Thread Size 1/8-27 NPT
 
Replacement Parts
 
O-Ring Kit 130-2479
Replacement Piston 200-7514
Cross-Over O-Ring Kit 130-10540
Bridge Bolt Kit 230-7541
Wear Plate L/H 300-5923
Wear Plate R/H 300-5922
Bleed Screw Kit 220-0627