HD Series™ 5000XS Series Drilled and Slotted Front Rotor by DBA®. Rotor Type: Vented; Rotor Size: 354.6mm (13.96"); Number of Lugs: 5; Hat Color: Black; Minimum Allowable Rotor Thickness: 32mm (1.26") One per pack. 5000XS series rotors offer the same drilled and slotted patterns of the 4000XS, but in lightweight 2-piece form with a center aluminum section. Aluminum centers lower rotational mass to quicken brake response, and outer rotor sections are cured with a patented process that reduces iron-weakening metal stress. Recommended for use with performance modified street vehicles. Rotor edges feature 3 paint marks which change color to reflect different levels of metal temperature, and 144 pillars between rotor faces provide faster cooling and greater strength to reduce heat warpage and extend life. Replacement rotor and hat sections are also available individually. Sold as a Pair.