Originally Posted by JusticeZero

My cargo bike is an IGH Giant Simple 3, with forward dropouts. The shop has been trying over and over to find a way to keep me from pulling the hub forward out of the dropout enough to start throwing the chain repeatedly while i'm pedaling to no avail. (I mangled the last gimmick they tried to build..)
I'm leaving star-shaped marks on the frame where i'm pulling the thing loose, I pretzeled a plate they'd cut to hold the axle in place, it's just getting downright obnoxious. I was riding slow for a couple weeks accompanying my asthmatic wife to work, but I went into school at my usual pace and dropped the chain with it JUST out of the shop. Last semester, I generally would throw the chain between four and fifteen times each week because of this.

Do I just need to get a new bike? And if so, does anyone have any suggestions for heavy duty cruiser frames suitable for cargo and big balloon tires with REAR DROPOUTS that can handle decent abuse? Including from being used outside in the weather, which rules out Worksman bikes that are "not designed to be outdoors"? I don't care much what style, so long as I can mount oversized Wald baskets front and back (thus no suspension) and run tires wider than 2". (Drops would be nice, but somehow I don't see it happening with the other requirements)