I saw it on JP Cycles. I'm considering the risers too but I think they block the tank when you lift it. On the other hand, for this Rocket, I probably won't screw with it so I won't be lifting the tank.That bar is the best one I have found as well. I may add a couple more inches under the stock risers as well.
I'm tire of looking so I ordered it from JP Cycles, whose web site works WAY better than Side Road cycles aka Flanders!