The ZX-1 Power Add-On provides power assistance to active users of manual wheelchairs. It is commonly known that maintaining a strong upper body for a person in a wheelchair is vital to the patient’s ability to perform transfers and other movements for improved quality of life. The ZX-1 aids in preserving upper body strength, significantly reducing the effects of prolonged pushing of a manual wheelchair. The ZX-1 is ideal for navigating over difficult surfaces like carpeting, grass, and hills. The ZX-1 is well suited for manual wheelchair users with a variety of disabilities including but not limited to: Spinal Cord Injuries, Amputees, stroke victims, MS, MD, etc. The ZX-1 adjusts to the user’s manual chair eliminating the need for an ATP, PT or OT to change the seating configuration of the wheelchair.