I have had an old roadster bike before and rode it every day until it got stolen. Now I am looking to get a new one so I can use it for cross-training and during triathlons. I do not want to spend too much money, as I am still new to this, so I was thinking $500 would be my limit. I found these two bikes in my search online and wanted to know what you thought, or if you have any other suggestions. Thanks!