So right now I have a MOB with 24's(being sold check the classifieds) and im going to switch to a bmx. IM goin to sell my mob around 900 so Ill have around that much to spend. I don't know much about bmx so I need help deciding what frame/parts(mainly frame). I'm gonna mainly be riding street/park but will do the occasional trails. I am 5'7 and like to ride 20.5" frames(my friend has one I like). I dont weigh that much and wont ride that hard so it doesn't need to be the strongest ever, however I don't want to have to be super delicate with my parts or have to replace them. 25 lbs and under is my target weight. So far I have looked at(with no previous knowledge) FBM stairmaster, fly bikes 3 amigos, fit S3 series aitken model...