It doesn't really matter what type of plumbing you use to dial in your bar reach/height. The combination of bar (riser, flat, sweep) with spacers and stem (angle, length) will end up getting your hands in the most comfortable position for your best bike handling. The width of the bar and the sweep of the bar will have an effect on your handling. Narrow bars tend to quicken up steering and make things twitchy where wider bars are a tad more stable and - I hesitate to use the word - slow the steering a bit compared to narrow bars.sacstatemtbr said:I just got my new Cannondale 29er 1 and I am looking at replacing the stock flat bar. I am wonderring if i should go flat or riser, and if it matters. What kind of differences will a riser make in my bikes handling vs. a flat bar. thanks.