I went racing last weekend at a very hot but very scenic road race. When I pulled up to the line, I found myself next to a guy with an interesting right leg. Actually, it wasn't a leg, it was a custom cycling prosthesis. The Airborne patches on the stump sock gave away the cause of the amputation and when I asked the guy about it, he told me a little more. The VA, he said, was really cheap when it came to prosthetics and wouldn't spring for a high tech peg leg. So, knowing a couple of machinists, he designed it and worked with some guys to build it himself. He wanted a peg style leg because a prosthetic with an ankle/foot saps pedalling energy in the ankle joint and flexibility of the foot. The socket terminated in a machined cylinder which joined it to a carbon fiber tubular peg. At the end of the peg was a Speedplay Frog cleat. This was his cycling only prosthetic. He said that he had lost a screw during warm up so he was hoping the leg would last him through the race! I wish I had got a picture of it but didn't run into the guy after the race.
It gave a whole new dimension to guys who race on what they make!