Hi, I bought a bike for my young son to ride last year and now I want to ride with him. I'm new to riding. 170 lbs and 6 ft tall. I'm thinking street legal although 9 times out of 10 I will be on the trail near the Rockies. I'm thinking drz 400 or wr 250. Lots of my buddies ride so i would like to at least keep up with their dust trail. Something like that. Any suggestions? Thanks front a new dirt rider.