Along the way, I realized my newlywed wife carries a lot more crap with her than she did when we were dating. This necessitated the installation of Yamaha's accessory top trunk ($559, plus $115.95 for the mounting kit and $109.95 for the optional back pad). The backrest, let's just say, is not meant for large women. My wife is pretty slender, and even she felt she was forced into "perfect posture"-especially while wearing a jacket with a back protector. It'd be better if the back pad were an inch or so thinner. Otherwise the top trunk worked perfectly. It didn't adversely affect the bike's handling, yet added extra storage capacity that, even if you don't need it, you'll find yourself using it. Often.