Motorcycle sizing chart: 1oz for 80-120 mm width tires, 2oz for 130-230 mm width tires, 3oz for 240-360 mm width tires. Need a different sized kit? Enter store here: www.amazon.com/shops/tirebalance Wheel weights are now obsolete. Now there is a better solution for motorcycles, ATV’s, autos, trucks, commercial vehicles, and trailers. Internal balancing beads optimize tire mileage by continuously balancing your tires as you drive/ride. This is an internal bead dynamic balancing method, a high-density ceramic bead that is easily installed either by adding during the tire mounting process or using the valve stem application method. The beads will distribute themselves in weight and position based on the balance requirements of a particular tire. This gives you a smooth, vibration-free ride, while improving tire life by re-positioning as the tire wears. For virtually any vehicle, ceramic beads are the best way to get rid of vibration and tire cupping problems.