I have a Walmart bike and its a Next. ive had problems from the chainwheel (sprocket) to the chain breaking and falling off on me. everything either bent or snapped because i like to jump. if i go to the frame and work on it from the frame and just get quality BMX parts from like Danscomp.com can i have a fly looking bike that looks like a GT or Fivestar bike? i really dont care about the handle bars or seat. i want to know if i can buy a 25T chainwheel and a 3 piece crank set with a chain. thanks in advance' ill be sure to get back to you and tell you how it went.