In retrospect I could have explained more, I just didn't want to get wordy. The reasons I don't keep commuting on my road bike are many. I'm getting flats with the skinny tires (I'm about 6'5" and 190 lbs) so I want to have 700x28 tires. I also don't want to put too much wear and tear on my road bike. Mostly I love the idea of the simplicity of the single speed/fixed gear in terms of maintenance. I'm tired of all the time I spend adjusting/maintaining my bikes. My commute can be tough on bikes. So I want a middle ground, I want to go as fast as I can and be as aggressive as I can while not having to worry much about durability, maintenance, and flats. Meaning I don't want a typical track bike/fixed gear with skinny tires and no brakes. The 925 seems like a good compromise, but I'm not sure.