Oddly, I feel 'loose' after a fast spinning ride, something that does not happen with a geared bike.Sheldon offers this: <a href="http://www.sheldonbrown.com/fixed.html">http://www.sheldonbrown.com/fixed.html</a> His knowledge far exceeds mine, and this page is a primer in doing a fixed gear conversion.There is a quick and dirty way to discover if you will like riding a fixed gear.