What exactly is a BMX bike?

angeld · 07-10-2007, 11:29 AM

I read on Wikipedia that they have standard 20" tires, but that's all it said about it. My 9 year old son has a bike and has been trying to turn the one he has into a bmx bike. He removed all the breaks so that the front steeringwheel now freespins. Is that normal. He now has no breaks. (Doesn't really matter because we live way out in the country where it's flat). Anyway, do bmx bikes have rear breaks? I'm thinking of buying him one for his upcoming birthday, but don't know anything about them. Which is a good brand to buy that's not too expensive ( $100 or less)?
Any answers will be much appreciated!