{"product_id":"wilwood-caliper-forged-superlite-4-1-88-1-75in-pistons-81in-disc-120-11137","title":"Wilwood Caliper-Forged Superlite 4 1.88\/1.75in Pistons .81in Disc 120-11137","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.","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67637532197177,"sku":"WILW_120-11137","price":274.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/3318\/8950\/files\/01-92e34747eed04f9b.jpg?v=1791740251","url":"https:\/\/roco4x4.com\/products\/wilwood-caliper-forged-superlite-4-1-88-1-75in-pistons-81in-disc-120-11137","provider":"ROCO 4X4","version":"1.0","type":"link"}