I am a flipper too. But have a hard time finding time to do it. I flip maybe one bike a month on average. But what I want to know is do you guys rebulid everything? I do everything! regrease everything check all the bearings and replaces cones etc.. as necessary. It can take me weeks doing bits and piece here and there. Not to mention I get incomplete bikes and piece them together and have to deal with all kinds of incompatability issues etc. etc. Say you spin the wheel and the bearings seem okay? will you bother servicing the hubs? Another problem is I have a hard time getting what I want for them sometimes because people on craig's list would rather buy an 80 dollar junker then a 140 dollar fully serviced bike with new parts...