I would not want to insult 400 owners by suggesting that it is downgrading to switch from a 650 to a 400. Perhaps there is a better word. But I find that at age 84 and with arthritis the weight and seat height difference may allow me to ride for some time into the future. I feel that I still have the health otherwise with good eyesight and reactions. At any rate I have placed my 2007 Exec for sale in the Austin TX Craigslist classifieds, and am now looking for a good deal on a 400, hopefully near the same price as I am asking.