There's no way on earth I could ever ride a flat bar with no bar ends.... I had them on my previous bike (a GT Timberline circa 2000) and they made a world of difference before and after. My new bike has a riser bar, but I'm almost considering going back to a flat bar with bar ends. Not sure what I want to do, though. I suppose it's possible to put bar ends on a riser bar, but it looks kinda dorky.