The Factory Spec FS-219 2" Wheel Spacers make it easy to widen the stance of your ATV, providing extra stability and gives your ATV the ability to accommodate larger tires. Designed for maximum strength and durability, the FS-219 spacer is constructed of 6061 T-6 aluminum and work with a bolt pattern of 4/156 and has M12 x 1.25 studs. The studs are integrated, so you dont need to remove the stock studs for installation. Hardware included for easy installation.