Like others said- the C14 has a huge engine. 16 valve head, variable valve hardware, larger cooling system, etc. As a sports tourer, it has more dash, all the windscreen hardware/track/motor, larger (but not huge) gas tank, rack stuff on the rear, larger mirrors, hydraulic clutch master, taller/thicker handlebars. It has a lot of stuff above the "midline", which makes it top-heavy. When I moved from the ZRX to the C14, it was very obvious how much more top heavy the new bike was. And just heavier and bigger all over.
It is only a "problem" when moving very slowly, like parking maneuvers (and more problematic for smaller people like me, with short legs). But once you get moving, that feeling instantly disappears.
And like was also said- "adventure" class bikes are often even worse because they are so far off the ground to make additional clearance. "Cruisers" are much lower to the ground.