GMZ’S Sportech wheels are designed for Sport ATV applications. Sportech Wheels are made of Spun Aluminum, and heat treated for more strength. The wheels are made from .125 high-grade aircraft quality aluminum. The rear wheels have an extra ply of .125 material added to the center of the wheel around the bolt pattern for increased strength and durability. The Sportech wheel comes standard with a rolled edge on both sides that create a hollow bead on the edge of the wheel for more strength. These wheels are race proven for flat track or TT and are also great for recreation, or OE stock replacement. The Sportech wheels are available in all the popular sizes and bolt patterns, and come with a mirror like polished finish. The Sportech wheels come with a Lifetime manufactures defect warranty.