A new UN54 is pretty cheap but you do need a crank puller and BB-Tool. This is the kind of stuff that makes me hesitate recommending a Walmart bike. It's not a big deal if you know what to do but it's interesting that you're not going to take advantage of the warranty. I mean I wouldn't either, -mostly because I wouldn't trust that Walmart could really fix it. I think they'd just tell me to pick out a different bike, - which may or may not have the same issue.

Then I have to go through the whole process of readjusting everything again and re-install any accessories I had put on it.