If you`re replacing your bar and using the same stem, be sure you get the same size clamp diameter. Up until about a year or two ago, 25.4mm, and 26mm were most common, with a few other in between sisez. Now most bars have a big fat clamp section (31.8mm, I think). If your stem is for 26, you can cut or buy a shim to use a slightly smaller bar diameter, but there`s no way you`ll ever shoehorn a big bar into there. Universal Cycles is a good place to window shop for what`s available because their website divides all the bars into clamp diameters, so you won`t have to click on every single bar and read the specs.