I hear this a lot from people who don't ride a flat bar. I DO ride a flat bar and I do ride a drop bar. In other words, I have both kinds of bikes and ride each of them regularly. The flat bar is better on long rides. You can find subtle ways to change the placement of hands when they get tired. The ergo grips will reduce A LOT of hand fatigue since most of that comes from road vibrations. I have a flat bar on a Specialized road bike so for both bikes, I have riding a road bike. I have used the flat bar on two centuries and didn't have hand issues. So go for it!