Originally Posted by
Tome
The center of gravity is slightly lower because all the upper components are carbon fiber as opposed to aluminum on other bikes. The crankset and bottom bracket are metal so the lighter components and frame will cause the COG to drop down a little.
Considering your frame is lighter overall, the COG will actually have shifted higher.
You've got a frame which sits mostly below the rider. As is, the COG is fairly high - the rider considerably outweighs the frame. Decrease the weight below the rider (such as by introducing a carbon fiber frame), the COG actually shifts higher.
Now yes, the COG of the bicycle alone - with no rider - probably is lowered, but this isn't the COG you care about.
Handling has probably improved due to other factors.