2008 XB12XT, currently has 1" risers from American Sportbike.

Just wondering from those of you who have gone with higher bars. How high can you go before you need to lengthen cables and wires? I recently did a couple long rides and found myself hanging on to the mirrors on the highway, ape hanger style. I'd like the bars to be taller, but not sure how far I can go with the stock setup.

American Sportbike sells 2.5" risers but with a disclaimer that says they will cause issues. From what I'm looking at so far on my bike, I think they might work. The clutch and brake lines seem to be long enough, and I might be able to free up some slack in the control wiring.

Any thoughts?