Wheel spacers are designed to extend wheel width for greater stability and increased safety. These spacers allow for the installation of larger tires without rubbing shocks, struts, or exhaust systems. These are heavy duty spacers, and are CNC machined from 6061 billet aluminum. Even with larger tires, high powered ATVs, and extreme punishment our spacers are built to withstand twisting and flexing. Spacers simply bolt between the hub and the wheel and come complete with nuts and studs.