I am installing 12.5 in wild 1 apes on my softail deluxe. What are the correct length i need for the cables? I am having a hard time locating an answer

 

I put 14" apes on mine. LA Choppers, not Wild 1's.. but I went +11" and had plenty left over. (didn't do a good measure to begin with, so just took a length of cable, soldered/wrapped up one end, fed the whole thing through the bars, and cut off what i didn't need before soldering up the other ends).. You could probably get away with +8's depending on the height of your risers. Always better to have more than less, ya know?