You didn't think Kawasaki would surrender the ber Sport title without a fight, did you? The $11,699 ZX-14's '08 enhancements are relatively subtle, but intake and exhaust changes boost power output everywhere, especially down low. Whether it's enough to stay ahead of the new 'Busa remains to be seen. At $3499, an all-new 250 Ninja looks like a clear winner. Rolling on new 17-inch wheels, the bodywork, chassis and 70 percent of the 249cc parallel-twin beneath have been redone for '08. Kawasaki claims 30 percent more midrange power. That's good news for neophytes and experts alike.