Large Flywheel: The Sole E35 has one of the largest flywheels of any consumer level elliptical trainer. It weighs a ton, and this has multiple benefits. Chief among those is the smooth use that it offers.
Some cheaper alternatives tend to struggle when put through their paces in more intense workouts. This is especially true with larger individuals whose body mass naturally places a greater strain on the device. A heavy flywheel does a great deal to offset this problem, ensuring that the pedals keep on sailing in a smooth elliptical rhythm.
https://www.youtube.com/watch?v=UcdaICOh6vQ
http://www.dailymotion.com/video/x2z9t4e
