Originally Posted by
jamesshuang
Well, speaking from personal experience, the hubs are not as durable as you think. That's the first thing that actually FAILED on my walmart bike. The ball bearings in the rear hub disintegrated while I was biking in the middle of nowhere. Very irritating, since I had to call my friend to pick me up.
+1
Since I'm often the wrench for the neghborhood kids, I've seen numerous shreaded rear hubs on Christmas Wallybikes. Sometimes it comes from poor maintenance or assembly, and sometimes the things just start falling apart. Sad thing is when they fall apart the bike gets parked in the garage until the parents decide to buy another one next Christmas, or decide not to since they beleive the kid didn't take care of the last one.