4pcs 1.5'' 4/156 4x156 ATV Wheel Spacers for Polaris Sportsman XP Ranger RZR 570 600 700 Kawasaki KSF 250 Thickness 38mm or 1.5 inches Centerbore 131mm Bolt Pattern 4x156 Stud Size 3/8-24x1 or 3/8"