The Sole TT8 is most well known for it's 22" wide running surface, one of the largest in the industry. This treadmill, while very impressive, is very similar when compared to the S73. It has a much stronger 4 ply belt, which is also 2" wider, larger rollers, and the console is a bit more advanced, but the rest of the treadmill is very simliar. It features a large 3.5 CHP motor, large 3" rollers, 12MPH max speed and 15% incline. This is a heavy, grounded, non-folding treadmill built for strength and endurance. Running back and forth across the country on this machine shouldn't be a problem at all as long as you're under the 400 lb weight limit. A very impressive machine, but compared to others in the price range, it's fairly average.
Motor: 3.5 CHP
Treadbelt: 22 x 60
Deck Cushioning: Cushion Flex Shock Absorption
Speed: 12
Incline: 15%
Weight Capacity: 425 lbs
Heart Rate Monitor: Hand Grips & Wireless Chest Strap
Warranty: Lifetime F/M, 5 YR P, 2 YR L
Rollers: 3 inches
Lift Assist: No
Folding: No
Fan: Cooling Fans
Workout Programs: 6
Display: Red LED Display