We only have a few big hills in my area. I am a fatty and my wheels are nice. If I pedal like a crazy man at the top and get to 30ish before the decent I can easily break 50mph on the really steep and long decents. It is fun to hit the recall button just because I am a speed demon.

On my commute I hit 30mph most days on the decents. Otherwise, I'm just a fat fred riding the MUP.