I am getting a new bike after about 2 years of not riding. I use to ride a RM85L which fit me pretty good. I am now 18 and have not grown much in 2 years, I am quite short, only about 5'5ish, probably a little less (hate being short ). I use to race, but now I will be riding mostly with some friends that ride 4 wheelers and do trailing riding. They aren't flying through the trails, the just have fun taking there time. Sometimes going through some mud, little water, and over some logs.A lot of riding is done at night, so would need a bike where I could put a light on it easily. I only have about $4500 that I am willing to spend on a bike. Not sure how a 125 2 stroke would do mainly lugging it through trails. Thought about a 250 2 stroke, but I am guessing I am probably to small for one, i would figure that something that big going through trails for me might be a problem, sat on my friends, and damn if it ain't quite big, lol. Now I am looking at a CRF150R or a used 250F. I would consider one of the trail bikes, but I will probably take the bike to the track to once and a while. CRF150R is looking pretty good to me, I could afford it brand new and since it has the same seat height as my RM85L, it should fit just perfect. Kind of iffy on buying a used 250F. ... Well... i guess I will stop there...kind of long...sorry Any suggestions would be great.