PM OFF-ROAD Wheel Spacer - 4/137 - 1.5"Features Provides the backspacing needed to get the desired track width and tire stance to improve the look of your UTV while also adding stability Comes with M12 1. 5 wheel studs installed and clear zinc open lug nuts to secure the spacer to the factory hub CNC machined from 6061 T6 billet aluminum Finish Raw Riding Style UTV Thickness 38. 1 mm 38,1 mm (1 1 2") 1 1 2" Units Pair Color Finish Silver Raw Machined Product Name Wheel Spacer Base Color