I have a basic road bike from Performance Bike, 105 groupset but the bike is heavy (24-25lbs) and so are the wheels (over 2kg each including tires/tubes). Knowing full well the best way to get faster is to get a better engine, I'm curious what performance gains you have noticed when you bought a race style bike (i.e. CAAD10 or any other $1000+ road bike).
Did your average speed increase?
Could you pedal harder for a longer period (fit/components)?
Any other quantitative gains?
I'm not quite looking for "I felt faster" or "I climbed like a rocket", I'm looking for solid numbers to see what more money gets you.