Test riders found it difficult to complain about the 2014 Kawasaki KX450F in this year’s Racer X Tested Shootout. The motor is strong, the handling is stable and predictable, and the bike has a comfortable feel as soon as you climb on. Depending on how you look at it, that makes this project particularly difficult and/or easy. We took the bike to Yoshimura and they took it to a whole new level.