I just looked at mine again. In addition to the main wiring loom, I also have a small flexible (nylon or ?) oil line going to the bar-mounted oil pressure gauge. With the main harness pulled up well above the grease fitting on the near side, I now find that the harness doesn't really touch or bind on the tank at all, and the tank looks nicely centered over the frame.
Phil Auldridge Austin, Texas - USA
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53 SQ 4 MK II, '72 Norton Commando, '78 BMW R100/7, '79 Honda CBX, 2014 Indian Chief Vintage