NordicTrack 1750 is the most affordable treadmill and NordicTrack 2950 is a premium model. Nordic Track 1750 is 10 inches but Nordic Track 2950 is a whopping 22 inches. This is the main difference between these two treadmills. Nordic Track 1750 comes with 3.75 HP Motor however NordicTrack 2950 comes with a monster 4.25 Hp motor which gives you a much tougher machine that can burn more intense or longer workout with ease.