Billet Superlite 4R/ST Front Caliper and Bracket Kit

The Billet SL4R/ST caliper kit adds the versatility and convenience of radial mounting. SL4R/ST models feature Wilwood's exclusive Thermlock pistons. This multi-part piston design creates a highly efficient thermal barrier to further reduce heat transfer from the pads to caliper body, seals, and fluid. Cooler temperatures translate to longer service life and less chance for heat induced pedal fade. Included Radial bracket mounts simplifies adaptation and provides two planes of adjustment for accurate alignment over the disc. The key to the superior performance of the SL4R comes from the extremely durable and efficient body design. It is the product of computer generated solid modeling and FEA stress analysis technology. Full length stiffening ribs and a reinforced radial transition from the piston bore housings to the closed end bridges has produced the strongest SL caliper bodies ever built. Kit includes two calipers left and right and radial mount brackets to adapt to popular Late Model Circle track spindles with a bolt spacing of 3.50" center to center.