Hello i just posted this in the road bike forum but they told me to post here also. I have been looking for a road bike and i saw this on craigslist. It is a fixie singlespeed, what is the difference between a Fixed Gear Singlespeed and a Singlespeed. Would this bike be worth it, for $200 i'll ask if he will lower it to $175. Thanks... Here is the link http://sacramento.craigslist.org/bik/297500153.html