About once a month I have rear wheel issues and today I found a second broken spoke. I have also found that "stock" bearings and hubs can't handle the output of an engine. Don't get me wrong, I use it all winter and understand that it needs servicing but I get every problem you can think of. One time my axle broke in half and to be honest, I'm thinking that my bearings may be wearing out as well. I tighten things up and two days later it will wobble a bit. Can anyone tell me if I should get parts and have a bicycle repair shop put it together for me and what parts I would use? (thick spokes, hub, bearings) Would I be better off just buying a brand new "heavy duty" wheel and what name brand would that be?