I know how the OP feels, some of those bikes from the toy stores just cannot be helped. You could sell the Dynacraft on craigslist, ask for your parents help on this, and make sure they know how bad the bike really is. A key word to focus on is Toys R us. I have bought very nice older bikes for $10-$15, and had a nice riding bike for $80 or less. I see those Free Spirit mtb's all the time, and while not my cup of tea, some have looked to be well made at least. That is really a joke about the home vs. store assembly being a basis for a return. A good 90% of the bikes I see have dangerous mistakes in assembly or adjustment. The store puts them together enough so they look complete, and throw them on the rack. Lose the Dyna, and get the wheel straightened on the FS. Or better yet lose them both, and find something decent under the radar at a flea market or garage sale. Thrift stores have decent stuff for cheap too sometimes.,,,,BD

Case in point. This Specialized hard rock "cruz" was $20? A set of tires and cables, and a good cleaning, and it will be good as new. Doing the work myself, plus the cost of bike and parts, I will be out around $80, or barely over depending on tire brand.