DBA 5000 2-Piece Rotor Ring Single Front 356x28mm5000 series HD variant features a smooth OE style rotor finish, popular for drivers looking for the benefits of a 5000 Series rotor but requiring no slot, cross drilled or dimpled designs. Sharing all the benefits of the 4000 Series, 5000 Series rotors are a composite 2 piece direct replacement brake rotor. We use only the highest quality materials to ensure optimal performance under the most strenuous circumstances, combining high carbon cast iron