Prepare your semi truck to be Ready for the Road Ahead , with the Centramatic 22.5-24.5" 10-Bolt Hole Aluminum Steer Balancer that provides enhanced wheel balance. With a weight-based design, this replacement component is the ideal solution to keep tires aligned while rotating at high speeds. Manufactured with free-moving fluid weights to keep wheels in proper alignment while rotating. FleetPride is your First Click in Heavy Duty .