Wilwood Caliper-Forged Superlite 4 1.88/1.75in Pistons 1.25in Disc - 120-11330DescriptionBRAND NEW IN BOX
DESCRIPTION
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.
The most noteworthy feature of all the FSLI caliper models is the exceptional strength and reduced weight of the forging. With assembled weights just at 4.4 pounds, the caliper body design in itself is a product of computer generated solid modeling and stress analysis technology. Each caliper features closed end bridges with a radial transition down to the main body and piston bore housings. The elimination of machined steps and sharp shoulders in this critical critical area provides a measurable increase in overall body strength and resistance to deflection under load. Every FSL body is stress-flow forged from a premium grade aluminum alloy billet. Stress-flow forging realigns 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.
PRODUCT INFORMATION
PistonsPiston Count 4Piston Area (in²) 5.18Piston Type StainlessDust Boot NoRotor Width (in) 1.25Rotor Diameter(in) 13.06Pad Area (in²) 8.2Pad Volume (in³) 4.9Material AluminumWeight(Lbs) 5.2Color AnoFinish Type III Ano
MountingMount Center(in) 3.50 Mount Side Left HandMount Type LugUPC 889545001372
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If you have any issue with your transaction, before filing any dispute, please contact us to resolve and we will do our best to resolve the issue through as soon as possible. Please contact us if you have any question.
