I was looking for bikes to mess around with on trails,riding around the neighborhood, and any other thing i think looks like it would be fun to ride on. I'm not doing any motocross riding and since I am a beginner I want I bike I feel comfortable on. I sat on a yz85 and a crf150f and liked how they felt. A yz85 has a seat height of 34 inches and a kx 85 has a seat height of 32.7 inches. I know a kx100 is on a kx85 frame and an rm100 is the same as a kx100, so I will be okay with either. Is the kx100 a good option because it will last me longer with a larger dispacement than an 85? I am 5'9" 130lbs have an inseam of 34" and have no riding experience.