DESC: Sole frames and consoles are 100% high alloy, mig welded formed steel. All Sole treadmills come with great electronic packages that offer the maximum flexibility to your exercise needs All Sole treadmills come standard with large, heavy, Continuous Duty Direct Current motors, found exclusively in high end treadmills. ole Whisper Decks offer the best warranty (Lifetime) and is the quietest deck on the market. The Trax Flex suspension system greatly reduces stress to feet, ankles, knees, hips and spine.