hello, this is my first posting, I have bike that is like a chopper with a sturmey archer AW three speed marked 69 .Ive had this bike since about 1975 . It was originally orange and said Fastback 500 on the frame. it has long an upswept banana type seat with a short sissy bar . The front wheel is 12" and the back is 20".The gear shift is a car type on the frame. I've always thought the bike was British but only because of the British hub. I don't have a photo at this point but will soon as I've just brought it home after its spent the last 25 years or so in the furnace room at my parents house. Any info you might have would be greatly appreciated.