I currently own a Ninja and don't really like it. It may just be because it's only a 250cc...but I droolget a ninja trust me you will probably like them more than the gixxers. Most of the guys i know that use to own gixxers went to a kawasaki and love them. Get a 636 and own all the 600s and 750s. Seriously I wouldnt really consider a liter bike or anything larger because hahahaha we told cody not too and he already wrecked it at like 1mph. (no offense cody)