Just how much faster is a quality road bike v.s. a quality fitness hybrid bike, lets say a Specialized sirrus limited? This is the bike i'm interested in just have to get fitted for it. Can you get up to 30mph or more on a hybrid fitness bike if you push yourself and want to. I'm talking about on the straights and downhill? The specialized sirrus limited is 2100.00 dollars so It has to be a good bike with carbon frame. Just not comfortable on drop down handle bars or I probably would go with a road bike. I know drop downs don't make that much of a difference in terms of speed as compared to flat bars. Is a Specialized sirrus limited fast? It has to be fast its a top of the line hybrid bike.