Hi everyone - I have an 18 month old Giant Cypress DX that had some spokes come off the hub - I was running late and had to go to work and rode anyway. As I was shifting down, the derailleur came completely apart. Like it was hit by a truck. I had the wheel re trued a year earlier (I am 6'6", 338lbs) where the bike shop guy made a comment that I was a big guy and you know this happens, I asked why they sold me a bike that may not support me then (that was my third and last bike I will buy there)? Anyway, I need to get it road worthy again - what rear wheel should I be getting? Something that will hold me structurally. I only ride on hard surfaces - the only "banging" the bike does is sidewalk to road bumps.

I will try to attach pics.

Thanks!