I put 10" mini apes on my 48 - I had to replace two of the cables but I don't recall which ones. I ordered them from the dealer. They let me return the one not used for a full refund.

 

I have 12" hangers on my 2015 Iron and had to replace the brake & clutch cables, rest are fine.

 

Not sure about the 48 but put them on my 06 xl and only had to do the clutch and brake lines. Wires needed a reroute but worked

 

IMO, if you're trying to save some ca$h by "stretching" cables for a bar swap...not a good plan. I was that way w/my FLXH and ended up having clutch slipping when taking sharp Right turns...even after re-routing. Do the right thing and get "all" required parts/cables to make the project a success and, more importantly, safe.

 

I put Biltwell Chumps (8") on. I technically could have stretched the brake line but ultimately decided to swap it for a longer cable. I'm assuming for 10" stretching wouldn't even be an option. Not sure about the clutch cable as I didn't have to replace it with the chumps but I have heard anything larger and that would need to be replaced as well.