Featuring ProShox Cushioning, the ProForm ZT6 delivers a more comfortable running surface while reducing impact on your joints with each step. Plus, with an easy-to-read display and Quick Speed and Quick Incline controls, you can stay on top of your workout stats and manage your workout intensity all in the same place.. Editor's Note: The ProForm ZT6 treadmill is no longer in production. We suggest viewing the ProForm City L6 or the Horizon T101 as the best alternatives, or check out our Best Budget Treadmills roundup for more options.If you're looking for one of the most affordable treadmills ever offered by ProForm, say hello to the ProForm ZT6..
No Workout Fan: Odd since this is standard on other ProForm treadmills. Track: The 55″ track is too short for some walkers and many runners. Unlike more expensive treadmill tracks, it isn't designed for longevity. Motor: The 2.5 CHP motor for the ZT6 Treadmill isn't one of ProForm's best. Warranty: This warranty package is below average.It includes lifetime coverage for the frame, 25.. Though Proform has lost a few points in the moral arena, they have also done the ZT6 a justice by making the price tag accurately reflect its quality. We have not recommended the ZT6 in the past because, as a thousand-dollar treadmill, it is a disgrace and an overpriced disposable treadmill.