Most Performant Treadmill In addition to the incline/decline feature, the extra wide running surface and reinforced framework are rated for stress/use and users up to 180kg. This framework, perma-waxed reversible deck, with 3"" crowned rollers, offers quality for years of use. When compared to models that cost upwards of $8,000, the Sole TT8 is miles ahead of the competition in quality, performance, and value. High Tech Features It also includes a 15.6"" Touch screen display, a quiet cushioned flex deck, and a strong motor with a commercial grade 10lb. flywheel around the motor to provide smooth and consistent power. It has effective programs that aid users in reaching personal fitness goals. For example, the Heart Rate Control program will keep you on target for heart rate training, whether it be for losing weight or endurance training. The TT8 also comes standard with a 2-ply belt that adds even more to the feel of the treadmill as well as longevity. The belt is engineered on a similar premise to the soles in running shoes. The TT8 offers a top speed of 12 mph and a top incline of 15 levels to give you a variety of options for interval workouts.