I know it's comparing apples to oranges but I just bought a new 2013 kx450 and first impressions is I love it. The suspension is so good and forgiving compared to my 2011 RMZ450, although the zuki is setup for a pro motocross rider. Ok the zuki has alot of low end power, I can put it and lug it in third around corners and it comes out to speed so good. Now the KX doesnt lug as good. Can I get more low end so I can lug it more? I was thinking an extra tooth on sprocket but not too sure.