Ordered a MotoCentric 19 tank bag based on the few recommendations here and think it's about the perfect size. Not to big or wide, yet not so small either. Magnet's are even strong enough to hold fast through my Gripster pad on the rear of the tank which really surprised me given it's thickness. Don't think anyone's posted pic's of this one yet so here's a couple for your viewing pleasure (just ignore my messy garage, I'm in the middle of a bathroom remodel).