On Monday we reported that US motorcycle sales shrank 15.8 percent in 2010 to just 439,678 units. Compare that number to these global figures from the largest motorcycle maker on Earth, Honda. Big Red sold 17,952,000 motorcycles worldwide in 2010, not only an improvement of over 2 million units from 2009, but a new record. Want to feel even smaller? Compare North American Honda sales — 192,000 — to other continents. Even South America, at 1,640,000 sales, is many times larger.