I don't trust my buddies with the smart end of the measuring tape, but they can hold the bars while I do the measuring....
Don't forget you have to turn the bars too. When I tried puttiing a very tall riser on my Apex, it would engage the trottle when I turned left. Helped me get around corners quicker, but made me a little uncomfortable at times After extending the throttle cable, no more unexpected acceleration.
Blutooth