Hey great place here! I have a 200M I got from a guy for $100 all beat up and wired up different because he didn't have a key for it, but it runs and I love it! I'm looking to slowly fix it up, but I'm also looking to get another. So I have a ton of questions but I'll start here... I'm not big into racing or anything but was wondering what all the bikes names mean? Like the X on 200X or E, or EX...etc... AND what bike is the fastest stock? Thanks for the help, I've already found a bunch of info on how to fix some things on my bike!