What size BMX bike should I get?

Well I'm beginning BMX and I found a nice bike for 125. I wanna get new tires but idk what size to get for front and back. Any help?

Im 12 and im going to get a bmx bike im woundering wut should be the size.

i have a 39t sprocket and dont know what size i should get although i want a smaller sprocket does any1 no what size i should get for a 1/8 chain

should i get a 20 inch bike or a 24 inch bike. i'm 5'5 and 115 pounds.

I amm 100 pounds and 5 feet. I want to get a fit bike but i dont know how to determine if its weight, size, ect. is right from me. Also suggest some other bikes to that would fit me if you want.

Ok my friend is selling his bmx bike for 40 dollars. i dont have much money, so im thinking about buying it. He says its 16". Im pretty sure that means top tube length, but im ...show more

i have a haro bike without a crank and sprocket. originally i thought that all cranks were the same size and when i tried to put a crank on my haro the crank i had was too small. i ...show more

i wanted to get a bike and i need help please anwser

i dont understand. i want to get the g-sport plegs (http://www.danscomp.com/518190.php?cat=PARTS) but it says that there is two different sizes..i dont know what i should buy. could ...show more