A year ago I was 379, and riding 6 days per week. I've had great luck with a Trek FX2 first, and then a Trek FX3 Disc that's my current ride. I'm under 320 now. I did pop a couple spokes in the beginning, until the Trek store properly tensioned my rear wheel - I've now got over 1,000 miles on the stock rear wheel since I had an issue. Getting good support from a shop that knows what they're doing is the most important factor that I've found.