Originally Posted by 138
i know plenty of people do it, but it's really not a good idea to convert a road bike to a fixed gear. it's just not safe unless you have horizontal drop-outs. you're putting a lot of stress on that rear cog and rear wheel when your slowing down and/or skidding and if that wheels slips out of the drop-out... well, you're screwed.
That is not necessarily the case. A lot of people ride fixed bikes with vertical dropouts. Forum member Fugazi Dave does and he hasn't had any problems as far as I 've read. Also Sheldon Brown has a sweet Ramboulliet fixie with vertical dropouts(if you don't know who this is then just google his name). Both of these guys use the White Industries hub. I would say it is not dangerous at all.