OK, I'm back. Had to do some hot weather acclimating today. Some of it riding.

Lots of it mowing.

Some of it actually watching fireworks.

Hey Doc, I need some clarification. When you say "Will 4 1/2 inch handlebar risers added to my 99 std", do you mean 4.5" extensions to the risers already there or are you talking about replacing the existing risers with ones 4.5" tall? If you're adding that much add'l height, I'm sure you'll need new cables all the way around. If you're replacing the existing with 4.5" risers, I defer to f-stop, Houdini, and the tech board.
You're right, Hay, the risers are 6" or 6.5", but I had to do something to make up for the pullback I lost when I switched to sweep-minimizing VTX1800C bars. No cable issues in my particular setup. The Galfer lines are their direct Valkyrie replacement lines. (They will make custom lengths to order if you use the spec sheet they will provide you.) I still need another inch of pullback and I think there's enough slack.
Good tip about the IS throttle housing, Russell. How are you doing?
And, if they are HD or HD-style risers, you
do not have to drill the top bridge to get the SAE threads through the metric hole. Baron Custom Accessories has an adapter bolt with SAE on one end and metric on the other.
http://www.baronscustom.com/catalog/display/1182/index.htmlAlso, if they are HD or HD-style risers, a single top clamp designed for them will not work on the Valkyrie. I believe the Valkyrie riser bolt spacing is 100mm, or roughly 4". I believe the HD spacing is 3.5".