I had this old orange huffy bike. It was pretty shitty so i decided to take it apart and paint it. I spray painted the body metallic blue and the wheel rims white. I got most of the bike back together, except the back wheel mechanism. I could not figure out just how to get all these little greasy gears and shit back in their. DOes anyone know of any good sites with DIY shit or info about bikes (BMX or Mountain or Trek)?