Originally Posted by Retro Grouch
Probably not.
Single speed bikes are picky about chainline so you'd have to check that out.
If you have vertical dropouts, you have to have a way to adjust your chain tension. The simplest way would be to keep your rear derailleur but, if you do that, what's the point?
Vertical dropouts can actually work better for single speeds if you can find the gear combination that will give you correct chain tension. The wheel is locked into position, so it can't be pulled out of position no matter how hard you stomp on the pedals. You can even use a quick release. When the chain gets too loose, it's telling you that it's worn out.
http://community.webshots.com/photo/...68014369jHohCP