At 200lbs 6'0, i feel like certain bikes might not suite me. My last bike (which was a cheapo diamondback for 350) ,which i took well care for cleaning weekly, is in need of a new chain, new tires, and maybe rims according to the techy i talked to. I also had a to replace multiple spokes during the measly 5 months i rode this bike. I did ride everyday but i barely averaged 30 miles 5 times a week in one day. I guess my question is, is my weight a concern or just that i got a very cheap bike(it was probably the cheapest rode bike they had)? If so what sort of bikes within the 1000-1500 range would you recommend? I would like something durable but still fast. Carbon frames may be out of the question though( i hear they are very fragile,even for skinny guys.)