Kettler track performance treadmill just one look at the kettler track performance treadmill and you can see why it is one of the most popular models sleek stylish and designed to give you a comfortable workout this treadmill is the perfect addition to any home gym it is a well known fact exercising on asphalt puts undue stress and strain on delicate joints overtime this can lead to increased risk of injury this high performance treadmill boasts a cushioned track so you can take your wo