Prosthetic got you down? Can't do what you used to do? Then invent one that will and share it with the rest of the world. That's what Brian Bartlett did and when I saw this knee, my jaw dropped. I have been frustrated with not being able to ride with both legs. I just take off the knee component and ride with the socket on and no lower leg. Rides are shorter, slower, less challenging and obviously limited to staying mounted. But...with a knee like this...I see no limitations!