Use an industrial-grade chain that's at least 38 millimeters wide and wrap both ends of the chain around your front or back wheel like you would with a strap. Make sure that the chain links are small enough to fit through the wheel notches. Once you have both ends of your chain around your wheel, pull down on them to tighten them against your ATV. If there's too much slack, slip a pen through the chain loops to tighten it down even more. Your ATV should now be secure enough that it won't move around when you drive.