The number 1 treadmill is the ProForm Pro 2000 Treadmill. It has a 4.0 CHP Mach Z Commercial Pro Motor and a 60 x 20 walking belt. It also has a 0-12% incline range and a top speed of 12 MPH. The ProForm Pro 2000 Treadmill also has a 300-pound weight capacity and a lifetime frame warranty.