Here is the link but there isn't anything new. The Japanese still have their head in the sand. The same aluminum frames since 1997 and the same 4 stroke engines since 1998. If the Japanese continue like this they are going to go bankrupt. The Yamaha YZs are unique(with the wrap around exhaust) but there aren't innovative at all. I wouldn't trade my gasser for a shipload of that aluminum framed outdated thumper junk.
http://www.cyclenews.com/408/21835/Racing-Article/Kawasaki-Unveils-2014-KX250F-and-KX450F-.aspx

http://www.cyclenews.com/408/21835/Racing-Article/Kawasaki-Unveils-2014-KX250F-and-KX450F-.aspx