I thought I should mention this about aluminum and weight. A cheap walmart or target aluminum frame usually weighs more than a good steel frame. On those cheap aluminum frames they use a cheap (heavy) alloy which requires thicker tubes and huge down tubes. Only when you get into 1,300 and up aluminum bikes do you get a lighter/stronger frame. So if you think you are saving weight and that is the deciding factor on going aluminum don't go cheap. You will be much better off with a chromoly frame off of craigslist. The kit will fit better, it is stronger, and absorbs vibrations better.