I have a very practical (stupid?) question. I have an '02 Fatboy with the stock seat. My wife is in ill health. She's not comfortable on the back without a backrest, but she can't swing her leg over the bike with the backrest attached! Someone suggested she mount the bike first, by the driver seat and scoot back, but that doesn't sound too safe. Another suggested she stand on the rear footpeg to mount. Any ideas? Is there a fold-down passenger backrest?