I don't know any public bike companies but I think you'll make more money buying oil stocks. Making money in the bike business is still a crapshoot. There isn't a lot of opportunity for revolutionary innovations in bikes as pretty much any bike designed in the last 20 years is perfectly functional for exercising or commuting. Without the ability to protect proprietary designs the only opportunity for companies to differentiate themselves is through sales & marketing. Not a good formula for making money.
Greg