How can I determine what kind of BMX frame I have if I there no decals on the bike when I got it? I got it from my dad who found the frame and we put it together, but I am clueless as to what brand or make it is. Can someone help me?
There was a time when bikes (and cars, and food mixers, and whatever) were manufactured to last, and the same model would be manufactured and sold, unchanged, for many years.
From somewhere in the 90's, there seems to be an obsession with the NEW, so now bikes (and cars, and cell phones, etc you get the picture) change their designs overnight, so people might want perhaps to purchase a NEW one every year.
To make matters worse, in the world of bikes there has been a relative epidemics both from bikes manufactured in Asia (which might or might not be a Bad Thing, depending on perspective) and WalMart bikes (which are always Evil).
So, if your bike is a "vintage" bmx, I think the best to do is to go to an oldschool BMX bike store and ask the shop crew. There are some bike models which are very distinctive (for example, the classic GT triple triangle), and folks used to see the same bikes over and over might remember some subtleties.
But if your bike is very new, then I'd say it's nearly impossible. Sometimes bikes from two different brands are identical except for the logos, and sometimes bikes that are SUPPOSED to be identical are not, just for being from different batches.
In the end, it matters most to know if your bike is GOOD (aka, real bike), or if it is just a Bicycle-Shaped Object, which I hope it is not.
Hope this helps!