In Canada at least power and phone lines are supposed to be hung at a
minimum of 13.5 feet. I use the tall Thule model bolted to the cap. My
bike reachs 10.5' with this setup. Never knew its height until I hooked
a thick bundle of phone wires. Phone company was liable, of course. Tore
the forward rack half out. The repair shop did a nice job, adding
reinforcement and doing a wonderful job on my rear bumper as well. Thank
you phone company ;)

Phil Menchions  '89 Westy