The Spirit Fitness 4.0U Upright Bike delivers cordless convenience through self-generating power, eliminating outlet dependency for truly flexible placement in any rehab or clinical setting. With 40 levels of resistance, 11 preset programs, and a built-in 3-speed cooling fan, it's engineered to meet a wide range of patient needs — from early-stage recovery to progressive strength building. Heart rate monitoring via hand pulse sensors and wireless receiver (Bluetooth, ANT+) keeps clinicians and patients informed throughout every session.

Designed for comfort and accessibility, the 4.0U features a fully adjustable high-density foam seat (fore, aft, and vertical) and accommodates users from 4'10" to 6'6" with a 440 lb weight capacity. The whisper-quiet operation, easy-to-read white LED display, CSAFE connectivity, and built-in tablet holder round out a bike built for serious rehab environments.