Forged Superlite Internal 4 ST Black Anodize Right Hand Caliper (Piston Area: 5.18)

FSLI4 and FSLI4/ST calipers provide the pad wear performance advantages of differential bore pistons with the option for ultimate heat protection using Thermlock® pistons in the ST models. Differential piston bores compensate for leading-edge mechanical loading and temperature variances across the pad face to reduce pad taper wear in sustained high temperature applications. Thermlock® pistons in the ST models block heat transfer from the pads and reduce temperatures in the caliper, fluid, and seals by up to 25% over standard stainless steel pistons. These are the go-to calipers for all types sustained hard braking on dirt and asphalt ovals and a wide range of off-road, rally and road course applications.

These new FSLI4 and FSLI4/ST models use the latest innovation to the Superlite family of calipers. They have 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 allow this group of right and left hand oriented differential piston bore calipers to be mounted in either a leading or trailing position.

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

Piston Specifications:

• Piston 1 Bore(In): 1.88
• Piston 2 Bore(In): 1.75
• Total Piston Area (in²): 5.18

Mounting Specifications:

• Mount Type: Lug
• Mount Side: Right Hand
• Mount Center(In): 3.5
• Mount Hole Size(In): 0.45
• Mount Height(In): 2.85
• Inlet Thread Size: 1/8-27 NPT