I dont know the answer to your question, but Isure would like to know. My 86 VFR700F2 is a great bike, but it kills my back and wrists!
I have found these. They are not cheap but should do the job. http://www.1tail.com/sa/cart/detail.asp?pg={A6C13833-A12C-4F26-A643-B882F8AFE815}