Hi I have a 2015 FLHTCUTG Tri Glide and I want to put apes on it. Does anyone know how tall I can go using the stock lines and wiring?

 

There isn't a simple answer to that question, as the shape of the bars comes into play, especially if you run the wiring through the bars. Far better to find a set of bars that you feel comfortable with and take it from there - that's the way to get the best results IMHO. An alternative is to find a brand of bars that offers wiring extensions, if required.