Pro form premier 900 treadmill the preform 900 treadmill is built with a powerful 3 0 chp drive system it is the ultimate treadmill for your home cardio training paired with its motor is a generous 20 x 55 51 x 140 cm walking belt which is complete with proshox cushioning an air based absorption system that responds to your movement changing the elevation of the deck with every step there are a total of 30 pre set workout apps to test your limits along with digital quick controls to