X2 on no prosthesis. Whoa. There are a good number of amputee athletes out there. E.g., a Vietnam vet w/one prosthetic leg rocked the Oklahoma Freewheel ride last week, but I've never known a cyclist to ride flat-out one-legged for more than (IMO hateful!) drills. Huge huge props.
Also impressive are the handcyclists, especially when they climb. Can you imagine doing a climb on 100% upper body strength? Para-athletes are a huge inspiration to me. Another: Sarah Reinertsen. She has a passion for reaching out to other similarly-situated women as well.
http://www.alwaystri.net/ OK I'll stop now.
