Roadmasters are BSOs ("Bicycle Shaped Objects"). Same with Magna, NEXT, Murray, Huffy, and the rest of the department store bikes.

I have not-so-fond memories of the Murray mtb I bought in 1985 destroying the rear derailleur shortly after purchase. It was used, but still in good condition. Well, as "good" as a BSO can get anyway.

A friend of mine insisted on buying a Wal-Mart BSO last summer, despite my warnings and pleas not to. Guess who got to wrench on that POS when it needed almost everything adjusted immediately? Needless to say, I uttered every cuss word in the book working on that POS!

Even scarier was the e-bike I bought a few years ago from a friend's neighbor. It had a front hub motor on a Roadmaster frame. That thing went at least 20 mph, and the thought of a mechanical failure at that speed caused me to sell it. Besides, I never got into the whole e-bike thing. I always got much more satisfaction from powering the bike myself.