How curved manual treadmills work (DIY+Professional)

A review about how they work Indian engineer -    • HOW TO MAKE A treadmill(manual) At HOME||I...   Talking about curved manual treadmills work, how to build one yourself, how professional treadmills are built and what are the advantage in them; specifically why I prefer manual curved treadmills. Manual treadmills are better. Motorized treadmill are old. Get on with the time. You can control your speed with a manual treadmill. I'm also showing how this indian engineer built his own manual treadmill using PVC pipes. Another person also built it using PVC pipes. But there is an alternative method of building curved manual treadmills - do it yourself, by using ball bearings. Preferably one-directional thrust bearings. I talk a bit about the engineering of a curved manual treadmill too. #Curvedtreadmill #curvedmanualtreadmill #manualtreadmill