I have a very tight budget of $300. The bike will be used to commute (approximately 4 miles there and back) regularly, and as a means of training. As an athlete, I feel I could very easily eventually delve into the sport of cycling but at this point a legitimate road bike (competition level) is not what I need. After quite a bit of research I feel that a fixed gear bike may be a good choice. I've read that many cyclists ride fixed gear bikes in the offseason as a means of training, so I feel that it would be a good useful workout. I've looked for a couple months on craigslist/ebay and have really haven't found anything used that fits my needs, but I have come across these new bikes and was wondering of opinions of them:
Also I am 6' to 6'1", so not sure if the 54 inch shimano (the non-fixed one) would be too small, as it says that it will fit up to 6'
Any feedback will be much appreciated