I have a Yamaha R6 and I was looking for a decent tank bag. Basically I want to be able to stash the stuff from my pockets and my helmet communicator in it, so it doesn't need to be huge. I want it to look good too.
Any recommendations?
Get one that is expandable then you have a small one, but when needed you have a little extra. Lots of separate pockets helps. Also magnetic is the way to go. And a clear map pocket on top is a necessity for me. One size fits most, so make sure the bag you pick fits your tank.
One thing to think about, if you ever do long trips a big tank bag allows you to lay on it and really extends your day.