micargi puts our good ones and they put out crap too. My stretch builds have suffered from broken frames, but only on the builds I've drilled holes into.. (which I don't anymore as that's about a $200 mistake).. the wheels are crap, the 68 spokes are a beyotch to get the sprocket mounted onto, and you can pretty much forget about that Hi-Stop coaster brake. If you're good with swapping out wheels, then go for it. I use the Falcon GTS regularly for builds, and the china girl engines fit like they were made for that frame. Again, just don't dill the frame and be prepared to buy some double walled rims..