I'm not a know it all. I just know alot about bmx. I've been doing it since i was about 10. I rode bikes that weighed close to 40 pounds until i was about 16. Seriously, don't be a ***** weight doesn't matter. starting out on a heavy bike will only benefit you, but really there is no such thing as a heavy bike with the completes they sell these days. Weight should be the last thing your thinking about.