Fast Boy Cycles is a one-man shop run out of NY and the owner, Ezra, has done some really interesting things with bikes. When he was undergoing treatment for cancer and was told he couldn’t put pressure on his nether-region he built himself a bike with no seat tube.
Fast Boy just posted this shot of a disc brake bash guard he made for a bike polo bicycle. The guard is removable so the bike can be used for commuting. That’s pretty slick.