The E35 features fluid natural motion provided by a whisper quiet drive system. Functions in both forward and reverse motion. The combination of a heavy 25 lb. flywheel and a high gear ratio not found on comparable models means an extremely smooth feel with plenty of resistance at the top end for a challenging workout.The E35 also has a power incline feature for additional resistance as well as variable positions. The ramp angle is fully adjustable with 20 different incline levels. This allows users to target and work all major lower body muscle groups. The handles also allow for targeting different upper body muscle groups. Stationary handlebars are also included with built-in pulse sensors for heart rate monitoring.The unique foot pedals were designed in collaboration with a leading physical therapist and sports enthusiast. SOLE engineers designed a 2-degree inward slope to the foot pedals to reduce ankle and knee stress. The 4 rear wheels ride on heavy duty rails . providing a smoother . more stable feel and reducing side-to-side pedal motion.