I am in the market for a different bike. I am 5'09" 165lbs and a fairly aggressive rider. I only ride trails for fun, not competatively. I had a 99 RM125 and loved the weight and handling but it was bad on the steep hills. I then bought an 03 WR250F because it was supposed to be the best. Well I got the lemon of the bunch. Had serious engine probs. at 99 miles and after no help from Yamaha, decided to sell it. I am considering a KDX, I think it might be just what I need. I know it wont be as radical as the RM, but could someone with experience with other bikes put the KDX in perspective for me. I have never ridden one. Also, is there a major power difference between the 200 and the 220. I was leaning towards the 200 or will I be disappointed after the other bikes I have had. Any advice is appreciated.