Mine is a 2006 I believe. It came fixed and the rear hub sucked. I killed that on the second ride but the shop helpfully gave me a new and better rear wheel. Harris cyclery in Newton, MA, great shop. One thing to consider, assuming the 2005 is the same, is that it's not drilled for a rear brake. So if you were to ride it ss you'd have no rear brake. I can deal with front brake only on a fixed gear, but not on an ss, ymmv. As a fixed gear I like that bike though.