The Pro Form 620 ZLT treadmill comes with a 2.0 HP continuous duty motor & offers a top speed of 16kph (9.94mph). The machine incorporates the fabulous Space Saver technology which allows the walking board to fold up out the way when not in use, whereas the Tread Soft cushioning reduces impact on the joints by up to 15% compared to road running. The Pro Form 620 ZLT features 0-10% incline with Quick incline controls enabling you to quickly change the desired level.