Since I have only been riding MX lately I have been looking at some used MX bikes. Since my 99 KDX 200 has plenty of torque and is pretty fast do you think a 125 would be too small a bike and be to pipey? I weigh 160-165 lbs and am 6 foot. I would like a lighter bike that can be jumped easier and handle the whoops better than the KDX (although with the Fredette 21# springs the KDX flies through the whoops). Should I concentrate on a 250? Is the 125C class more competative than the Open D class? Thanks.