Hello Everyone i'm sure that this comes up alot but I'm curious as to what size top Tube i need to be riding. I'm fairly tall between 5"11 and 6 feet and currently have a super bad bike that I have been messing around on that the top tube is 19. Now i'm not sure if the bike is toom small or if the bars are too big or if it's my stem as it does not stick out very far from the end of the Top tube. I'm working on getting a new bike and my buddy has a Haro 100.1 20.3 Top tube (https://www.harobikes.com/bmx/bikes/1...es/100-1-2012#) is this a good starting bike for me? I can bunny hop fairly well and am getting close to 180's and Bar spins. Thanks to anyone who can help!

You'll want to look for something bigger. At least a 20.75, probably a 21. And stems generally aren't very long. These aren't road bikes where an 80mm or bigger stem is pretty common. BMX stems are generally in the 50's.