I'm in the process of replacing my stock bars with Heritage bars. Does anyone know how big a hole I need to drill to run my wires through the bars? Thanks Michael

 

I measured my wiring harness with a vernier caliper ($10 or less at Harbor Freight) and drilled a hole a bit smaller (about 1/32" smaller) than that. Then I used a dremel with a small grinding stone bit to smooth the opening on both sides of the hole and enlarge it just enough to slide the wiring harness through.

 

The holes are oval, about 1/2" x 3/4" under the switches, and 1/2" x 1" where they both come out in the center.