Currie Technologies' customer service says that the rack bending is due to distributors like Wal-Mart improperly stacking the bicycles which leads to warping. Seemingly, the warehouse chaps don't understand, "This side up".

BTW, the E-Zip uses aluminum for wiring which doesn't pose a problem generally. However, the E-Zip which I bought for someone had a harness in which the wires were too short to the battery packs. Within 4 months, one connection on each side of the bike broke. Since the wires were so short (which lead to the failure), we had to buy some copper wire and solder it to the broken wire on each side in order to lengthen them and to reattach connectors. The splice was shrink wrapped and I don't foresee any problem adding copper to aluminum in this case. The bike's been running better than ever since these changes. However, Currie needs to pay a little more attention to packaging these bikes since they know that distributors won't necessarily do the right thing, and Currie needs to ensure quality control allows a harness of sufficient length in case some connectors break. The bike has been selling itself even after I mention some of the problems so it's a great value.