We are proud to introduce our billet hubs for your sprint car. After testing at Volusia speedway, we are very pleased how well they held up on the world's fastest half mile. Features include, timken races and bearings, o-ring sealed dust cap with SHCS titanium hardware, 3/8-16 titanium bolts and nuts for wheel mounting, and a rear seal for the spindle. Races come installed and checked for concentricity. We make these hubs with extreme accuracy holding concentricity within .0004 bearing to bearing.