Forged Superlite Internal Caliper – Part No: 120-11125
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Forged Superlite Internal
Prod #: 120-11125
Price: $229.14

Forged Superlite Internal - Product Summary
Caliper No: 120-11125
Forged Superlite Internal

Pistons
Piston Count 4
Piston Area (in²) 1.98
Piston Type Stainless
Dust Boot No
Rotor Dimensions
Rotor Width (in) 0.81
Rotor Diameter(in) 13.06
Pad Dimensions
Pad Area (in²) 8.2
Pad Volume (in³) 4.9
Duty Rating & Material
Material Forged Aluminium
Weight(Lbs) 5.2
Colors & Finish
Color Anodize
Finish Type III Anodize

Mounting
Mount Center(in) 3.50
Mount Position
Mount Side Universal
Mount Type Lug
UPC Number
UPC 889545001198
Product Documents
Product Data Sheet

Click To Download
Installation Instructions


WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Applicable to Brake Pads Only

120-11125 - Product Description

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.



Product Specifications

Rotor Compatibility
Rotor Width (in) 0.81
Maximum Rotor Width (in) 0.84
Minimum Rotor Width (in) 0.75
Maximum Rotor Diameter(in) 13.06
Minimum Rotor Diameter(in) 11.75

Brake Pad Specifications
Brake Pad Type 1 7420
Brake Pad Type 2 N-A
Brake Pad Type 3 N-A
Total Pad Area (in²) 8.2
Total Pad Volume (in³) 4.9
Mount
Piston Specifications
Piston 1 Bore (in) 1.12
Piston 2 Bore (in) 1.12
Piston 3 Bore (in)
Total Piston Area (in²) 1.98

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
Pad Dimensions & Part Numbers
Pad Dimensions for the Forged Superlite Internal Pad Dimensions for the Forged Superlite Internal Zoom Image
Axle Set P/N
Pad Type
Compound
Non-Bedded Pads - by Compounds
7420
BP-10
7420
BP-20
7420
BP-28
7420
BP-30
7420
BP-35
7420
BP-40
7420
BP-45
7420
BP-Q
7420
PolyMatrix H
Bedded-In Pads - by Compounds
7420
BP-40
7420
PolyMatrix A
7420
PolyMatrix B
7420
PolyMatrix H
Mount Dimensions & Part Numbers

Dimensions for the Forged Superlite Internal Dimensions for the Forged Superlite Internal Zoom Image

Additional Notes

The superior strength of this innovative new caliper is combined with proven performance features from other Wilwood designs. Each caliper is equipped with Wilwood's replaceable SRS stainless steel bridge plates. SRS plates eliminate the bridge wear caused by pad gouging and extend the service life of the caliper body. The spring-loading action of the SRS plates also eliminates pad rattle and dampens the vibration harmonics that contribute to squeal under braking. Other standard Wilwood features include high-temperature, square faced o-ring seals for positive sealing, controlled piston retraction, and long service life in high heat conditions. Stainless steel pistons are used to resist corrosion and retard heat transfer from the pads. Two-piece bleed screw assemblies provide long, reliable service life and are easily replaced if necessary.

FSLI calipers are a direct replacement for all Wilwood Superlite and similar competitive brand calipers with 3.50" centered mounting tabs. Calipers are available in the popular 1.75", 1.62”, 1.38", 1.25” and 1.12” piston sizes for .81", 1.10" and 1.25" rotor widths. FSL calipers use the same 7420 type bridge bolt brake pad used in all Superlite 6 piston calipers. The full range of PolyMatrix pad compounds is available to match brake response and heat range to any application.


Parts & Accessories

O-Ring Kit 130-2579
Replacement Dust Boot N-A
Replacement Piston 1 200-7513
Replacement Piston 2 200-7513
Replacement Piston 3 N-A
Replacement Piston 4 N-A
Cross-Over O-Ring Kit 130-10540
Bridge Bolt Kit 230-7539
Wear Plate L/H 300-5923
Wear Plate R/H 300-5922
Pad Retainer N-A
Bleed Screw Kit 220-0627
Self Bleeder Tube N-A
Cross-Over Tube N-A
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Version: 3.05 June 23, 2023