I just installed these and like them very much. They are available at Dennis Kirk and JP Cycvles. These risers go up 1.5" and pull back 1.5", the maximum without legthening the throttle cables. I did drill out the triple clamp to 1/2" which only took a minute. I used 1/2" stainless bolts and washers from the local hardware to fasten the risers to the triple clamp.
