On Maximum Suzuki, a lot of people are talking about the bikemaster daytona bars. Can order them @ local shop, JC whitney and so on. they are about $25 and worth it. You will achieve a 1" vertical rise. (I compared measurements from the floor before and after.) I cut 3/4" off of each end and painted inside the bar before installing.
I've not noticed this on any thread but, you can remove your foot peg mounting bracket and flip it upside down. This is a big winner in my book- you move the surface of the peg down about 3/4". Its all the help that my knees needed. (I have the seat in the high position)
My previous bike was a Buell. They are discontinuing a LOT of parts for those bikes. I recommend buying the Ulysis pegs, they are the best of all. Many of the buell pegs are cheap pot metal.