Forged Billet Aluminum Vented Rotor Offset Hubs are made from premium grade alloy billets are forged into shape under high heat and pressure, then CNC machined for precise fit on each spindle application. Intended for use with intermediate adapter plates with vented .81 width rotors, but can also be used with aluminum mounting hats for custom applications. This specific hub is double drilled with a 5 x 4.50 5 x 4.75 wheel lug pattern. Hubs include bearing races and screw - on aluminum caps.