{"product_id":"wilwood-st-fsl4r-caliper-1-88-1-75-1-25-rotor-1","title":"Wilwood ST FSL4R Caliper 1.88\/1.75 1.25 Rotor","description":"FSL4R\/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. Featuring a wear resistant Type III hard anodize finish, 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":50474689298727,"sku":"WIL120-13263","price":468.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/9043\/9719\/files\/c10a57fb392174bfcf5792ab3d2aedfbL_235584ba-ec8d-4101-806f-d0ab284bea1c.jpg?v=1759260547","url":"https:\/\/stevenreddracing.com\/products\/wilwood-st-fsl4r-caliper-1-88-1-75-1-25-rotor-1","provider":"SRR","version":"1.0","type":"link"}