On the chop in my avatar, I was pulling away from a stop sign out in BFE, I roll on the throttle pretty hard. It felt like when I hit second gear the front wheel came off the ground ( prolly not gonna happen on a bike that's 9ft long with a sock motor that has over 50K miles on it) later me and a friend of mine decide to pull it apart for paint, and found the top tree is the only thing holding the front end together, it had snapped at the stem. Of course the shitty weld job was to blame. Also I rode that bike for six months before tearing it down without noticing anything strange going on.