Re: debunking myths about walmart bikes
I was a competitive cyclist (road racing) and coach for 12 years. I can tell you that cheap bikes do not handle well, especially at speed. They tend to be misaligned and heavy. Steel rims are cheap, hard to true, have cheap and rough hubs and I doubt they are stronger.
It is better to look for a reasonable quality used mountain bike on craigslist (univega, diamond back, among many others) that were sold at better bike shops than at department stores.